Billie Piper has described her marriage to Chris Evans as "reckless" and admitted they "got hammered for three years."
The 38-year-old Secret Diary of a Call Girl star marred TV presenter and DJ Chris Evans, 54, when she was just 18 and he was 35 in a secret ceremony in Las Vegas in May 2001, after six months of dating.
Piper opened up about the whirlwind romance to former Doctor Who co-star David Tennant in his new podcast, and insisted she learned a lot from the relationship.
Tennant asked her, "You had this whirlwind marriage to Chris Evans who was, and is, a famous television and radio personality. The two of you sort of dropped out of life, didn't you?"
Billie Piper arrives for the Sky Up Next showcase at the Tate Modern, London. (Photo by Isabel Infantes/PA Images via Getty Images)
Actress Billie Piper poses for photographers upon arrival at the Glamour Woman of the Year Awards in London, Tuesday, June 6, 2017. (Photo by Joel Ryan/Invision/AP)
Actress Billie Piper attends the world premiere of the second season of Showtime's "The Tudors", Wednesday, March 19, 2008 in New York. (AP Photo/Evan Agostini)
British actors Billie Piper and her husband Lawrence Fox attend the Evening Standard Theatre awards in London November 30, 2014. REUTERS/Neil Hall (BRITAIN - Tags: ENTERTAINMENT)
LONDON, ENGLAND - OCTOBER 10: Billie Piper (C) wins a round of Bingo during the launch of the MR PORTER charitable fund "The MR PORTER Health In Mind Fund" at Quaglino's on October 10, 2019 in London, England. (Photo by David M. Benett/Dave Benett/Getty Images for MR PORTER)
Billie Piper (left) and Lily James attending the Rare Beasts Premiere as part of the BFI London Film Festival 2019 held at the Curzon Mayfair, London. (Photo by David Parry/PA Images via Getty Images)
VENICE, ITALY - AUGUST 30: Billie Piper is seen walking in Venice where she is screening her new film "Rare Beasts" which she wrote, directed and starred in, at the Venice Film Festival on August 30, 2019 in Venice, Italy. (Photo by Mark Boland/Getty Images)
VENICE, ITALY - AUGUST 31: Director Billie Piper attends the "Rare Beasts" Photocall at the 76th Venice Film Festival on August 31, 2019 in Venice, Italy. (Photo by Theo Wargo/Getty Images)
Billie Piper at the 76 Venice International Film Festival 2019. Marriage Story red carpet. Venice (Italy), August 29th, 2019 (Photo by Marilla Sicilia/Archivio Marilla Sicilia/Mondadori Portfolio via Getty Images)
LONDON, UNITED KINGDOM - MAY 12: Billie Piper attends the Virgin Media British Academy Television Awards ceremony at the Royal Festival Hall on 12 May, 2019 in London, England. (Photo credit should read Wiktor Szymanowicz / Barcroft Media via Getty Images)
LONDON, ENGLAND - DECEMBER 03: Billie Piper attends the London Evening Standard Theatre Awards at Theatre Royal on December 3, 2017 in London, England. (Photo by Karwai Tang/WireImage)
EDINBURGH, SCOTLAND - JUNE 23: English actress Billie Piper attends a photocall for the World Premiere of 'Two for joy' during the 72nd Edinburgh International Film Festival at Cineworld on June 23, 2018 in Edinburgh, Scotland. (Photo by Roberto Ricciuti/Getty Images)
LONDON, ENGLAND - DECEMBER 03: Suki Waterhouse (2L), Billie Piper (C) and Immy Waterhouse (R) attend the London Evening Standard Theatre Awards 2017 after party at the Theatre Royal, Drury Lane, on December 3, 2017 in London, England. (Photo by David M. Benett/Dave Benett/Getty Images)
PHILADELPHIA, PA - JUNE 04: Actress Billie Piper attend Wizard World Comic Con Philadelphia 2017 - Day 4 at Pennsylvania Convention Center on June 4, 2017 in Philadelphia, Pennsylvania. (Photo by Gilbert Carrasquillo/Getty Images)
LONDON, ENGLAND - APRIL 09: Billie Piper attends The Olivier Awards 2017 at Royal Albert Hall on April 9, 2017 in London, England. (Photo by Mike Marsland/Mike Marsland/WireImage)
LONDON, ENGLAND - MARCH 10: Billie Piper attends the Olivier Awards 2017 nominees celebration at Rosewood London on March 10, 2017 in London, England. (Photo by David M. Benett/Dave Benett/Getty Images)
LONDON, ENGLAND - OCTOBER 13: Actress Billie Piper attends the 'City Of Tiny Lights' screening in association with Mobo Films during the 60th BFI London Film Festival at Picturehouse Central on October 13, 2016 in London, England. (Photo by John Phillips/Getty Images for BFI)
LONDON, ENGLAND - NOVEMBER 30: Laurence Fox (L) and Billie Piper attend an after party following the 60th London Evening Standard Theatre Awards at the London Palladium on November 30, 2014 in London, England. (Photo by David M. Benett/Getty Images)
LONDON, ENGLAND - SEPTEMBER 18: Billie Piper (L) and Gemma Chan attend the Bright Young Things Gala 2014, a Young Patrons of the National Theatre gala event in support of emerging artists, at The National Theatre on September 18, 2014 in London, England. (Photo by David M. Benett/Getty Images)
LONDON, ENGLAND - JUNE 03: Theatre Actress award winner Billie Piper poses at the Glamour Women of the Year Awards in Berkeley Square Gardens on June 3, 2014 in London, England. (Photo by David M. Benett/Getty Images)
Guests Billie Piper and Frank Skinner during filming of The Graham Norton Show at The London Studios in south London. (Photo by Yui Mok/PA Images via Getty Images)
EASEBOURNE, UNITED KINGDOM - DECEMBER 31: Laurence Fox and Billie Piper leave the Parish Church of St. Mary after their wedding on December 31, 2007 in Easebourne, West Sussex, England. (Photo by Dave M. Benett/Getty Images)
LONDON - MARCH 08: (EMBARGOED FOR PUBLICATION IN UK TABLOID NEWSPAPERS UNTIL 48 HOURS AFTER CREATE DATE AND TIME) (L-R) Laurence Fox, Christopher Hampton, Billie Piper and director Laurence Boswell attend the after party following the press night of 'Treats', at Fifty on March 8, 2007 in London, England. (Photo by Dave M. Benett/Getty Images)
Actress Billie Piper arrives at the Showtime party for the Television Critics Association Winter Press Tour in Los Angeles on Wednesday, Jan. 14, 2009. (AP Photo/Dan Steinberg)
(R-L) Noel Clarke, Camille Coduri, Billie Piper and David Tennant with the award for Most Popular Drama for Doctor Who at the National Television Awards 2006 at the Royal Albert Hall in west London. (Photo by Ian West - PA Images/PA Images via Getty Images)
Billie Piper arrives for the GQ Men of the Year Awards 2006 at the Royal Opera House, Covent garden, central London. (Photo by Philip Allport - PA Images/PA Images via Getty Images)
BRITISH MEDIA CELEBRITY CHRIS EVANS AND HIS WIFE POP STAR BILLIE PIPER WATCH ENGLAND'S CRICKET MATCH AGAINST PAKISTAN AT LORD'S.
British media celebrity Chris Evans (L) and his wife pop star Billie watch England's one-day international cricket match against Pakistan at Lords Cricket Ground June 12, 2001. Pakistan won the match by two runs.
Billie Piper wins UK TV Actress of the Year, presented by David Tennant (left), during the Glamour Women of the Year Awards, at Berkeley Square, central London.. (Photo by Ian West - PA Images/PA Images via Getty Images)
Dr Who stars David Tennant and Billie Piper arrive for the media screening at the Millennium Centre in Cardiff, Tuesday March 28, 2006. Tennant, 34, whose recent credits include Casanova and Blackpool, has taken over the role from Christopher Eccleston and has already starred in a Christmas special. See PA Story SHOWBIZ Who. PRESS ASSOCIATION Photo. Photo credit should read: Barry Batchelor/PA. (Photo by Barry Batchelor - PA Images/PA Images via Getty Images)
Actress Billie Piper and husband Chris Evans arriving at the Orange British Academy Film Awards at the Odeon, Leicester Square in London. (Photo by Yui Mok - PA Images/PA Images via Getty Images)
Actress and former singer Billie Piper arrives for the Blockbuster Starlight Ball in aid of Starlight Children's Foundation at the Hilton, Park Lane in central London. (Photo by Ian West - PA Images/PA Images via Getty Images)
LONDON - JUNE 14: Singer Billie Piper (L) attends "Totally LondOn, Taste Of Soho" street party on June 14, 2003 in London. (Photo by Bruno Vincent/Getty Images)
Football - Singer Billie Piper shows her support for the Comic Relief Celebrity Football Team who are supported by Nationwide to fund raise on Red Nose Day - 8/2/01
Mandatory Credit:Action Images/Brandon Malone
LONDON - DECEMBER 9: British pop star Billie Piper poses backstage after performing at the Smash Hits Poll Winners Party held at the London Docklands Arena on December 9, 2001 in London. (Photo by Dave Hogan/Getty Images)
Billie can be seen playing Rose Tyler, Dr. Who's most recent sidekick. (Photo by Eleanor Bentall/Corbis via Getty Images)
The Tv Hits Awards, London , Britain - 2000, Billie Piper At The Tv Hits Awards. London , Britain (Photo by Brian Rasic/Getty Images)
Singer Billie Piper after winning the 21st Century girl award at the Loaded Good Work Fella Awards 2000 at London's Savoy hotel. (Photo by John Stillwell - PA Images/PA Images via Getty Images)
English singer and actress Billie Piper or Billie, circa 2000. (Photo by Tim Roney/Getty Images)
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Piper replied: "We had a really amazing time together, you know? I imagine it's what your uni years feel like. Sort of reckless, but you're learning a lot.
"It was an incredible time and not to undermine our relationship because we also had a very loving relationship. It wasn't just, oh we're getting, going out, getting f*****d. We had a very caring, loving relationship."
And the I Hate Suzie star - who rose to fame aged 15 with debut Number 1 singer Because We Want To in 1998- claimed marrying Evans was the ultimate rebellion against being a teen popstar.
She added: "Also, I went and got completely hammered for three years with Chris Evans."
Piper also revealed that she lived alone from the age of 14, which now worries about looking back on.
She said: "I had my own flat at 14-years old! I was getting home after an 18 hour day, cooking m y own food - beans on toast and milk 'cause I was a child! And then getting up at 5am and going to work.
"Very weird. Very weird on reflection, and I am scared for my younger self. But at the time amazing!"
The Eternal Beauty actress and Evans split in 2004 and divorced in 2007 and have remained friends.
In 2007 the actress married Lewis star Laurence Fox and they had two sons Winston, 12, and eight-year-old Eugene before the separated in 2016.
Piper is now in a relationship with musician Johnny Lloyd and they have a 21-month-old daughter, Tallulah.
Evans - who was also previously married to Loose Women presenter Carol McGiffin - married professional golfer Natasha Shishmanian in 2007. They have four children together - sons Noah, 11, Eli, eight, and two-year-old fraternal twins Walt and Boo.
Evans also has a 34-year-old daughter Jade from a previous relationship.