We've had 'Beatle Mania', 'Bieber Fever' and many more: it seems like the obsession with celebrity will never end.
But have you ever gone to extreme lengths to get yourself just that little bit closer to your favourite celeb? If you have, you're not the only one! Take a look at the list of bizarre celebrity items that have been sold online.
Brad Pitt and Angelina Jolie
Someone brought a mason jar to the premiere of Mr and Mrs Smith in 2005, when the famous couple walked past they bottled the 'air molecules'. The jar of celebrity breath was then sold on eBay for $529.99.
The former NSYNC star left his unfinished breakfast at a radio station after an interview. The two slices of French toast were later sold online for £1,025.
After the pop star's infamous haircut in 2011, he gave the hair to Ellen DeGeneres. The popular TV show host then sold it online to raise money for charity and raked in an astonishing $40,668.
There have been several auctions of what was allegedly Britney Spears' gum - the biggest sale on eBay went for $14,000.
In 2002, 25 years after 'The King' died, a 3-inch clump of his hair set a world record for 'most expensive hair sold at auction online'. One lucky fan took home the famous hair strands for $115,120. Several more of Elvis' items have also been auctioned including a bible that went for $94,000 and a pair of underwear that was on offer for $11,000 but was never sold.
Boyband member, Niall Horan, took a bite out of Vegemite toast on an Australian talk show. The station put the remaining chunk of toast up for auction on eBay to raise money for charity and it was sold for $100,000.
A chest x-ray from this movie starlet was sold at an auction in Las Vegas in 2010. The surreal auction piece was eventually sold for $45,000.
The Star Trek actress sold his kidney stone to raise money for Habitat for Humanity. The odd body part was sold to an online casino for $25,000.
The actress decided to do her bit for charity in 2008 when she auctioned her own used tissue for charity. She blew her nose twice before signing the prize which was eventually sold for $5,300.