Stevie Wonder told thousands of fans watching him perform in London on Saturday night he is due to have a kidney transplant in September.
The singer, songwriter and musician told the crowd at an event in Hyde Park that he had a donor lined up, and was making the announcement to avoid rumors spreading about his health.
"I'm going to have surgery, I am going to have a kidney transplant in September of this year," he said as he finished his performance, according to footage posted on Twitter by those at the concert.
Musician Stevie Wonder with British television presenter Selina Scott at Stringfellows nightclub
Musicians Michael Jackson (L) and Stevie Wonder (C) along with Esther Gordy Edward (R), sister of Berry Gordy, founder of Motown, visit the Motown museum in Detroit in this August 4,1997 file photo. Jackson, the child star turned King of Pop who set the world dancing but whose musical genius was overshadowed by a bizarre lifestyle and sex scandals, died on June 25, 2009. He was 50. REUTERS/Rebecca Cook/Files (UNITED STATES ENTERTAINMENT OBITUARY)
LOS ANGELES, CA - JULY 15: (L-R) Actor Samuel L. Jackson and Stevie Wonder preform onstage during the 17th annual ESPY Awards held at Nokia Theatre LA Live on July 15, 2009 in Los Angeles, California. The 17th annual ESPYs will air on Sunday, July 19 at 9PM ET on ESPN. (Photo by Michael Caulfield/WireImage)
LOS ANGELES - FEBRUARY 25: Musician Stevie Wonder and singer Michael Jackson attending 28th Annual Grammy Awards on February 25, 1986 at the Shrine Auditorium in Los Angeles, California. (Photo by Ron Galella, Ltd./Ron Galella Collection via Getty Images)
Washington,DC 1-18-1993 Michael Jackson on stage with Diana Ross and the new president William Clinton and Vice-President Albert Gore Jr. L-R Hillary Clinton, Stevie Wonder, Michael Jackson, Chelsea Clinton, President WIlliam Clinton, Diana Ross, Credit: Mark Reinstein (Photo by Mark Reinstein/Corbis via Getty Images)
146027 08: (NO NEWSWEEK - NO USNEWS) Stevie Wonder, Aretha Franklin, Michael Jackson and Diana Ross stand with a crowd in front of the Lincoln Memorial January 17, 1993 in Washington, DC. Numerous musicians and performers gathered in front of the Memorial to celebrate the inauguration of President Bill Clinton. (Photo by Cynthia Johnson/Liaison)
(Original Caption) Los Angeles: Left to right Dionne Warwick, Stevie Wonder, Quincy Jones, Michael Jackson and Lionel Ritchie pose with the grammy they received for their performances on the all-star recording "We are the World."
Stevie Wonder performs"Take Me With U" with Tori Kelly at the 2016 BET Awards in Los Angeles, California, U.S., June 26, 2016. REUTERS/Danny Moloshok
Stevie Wonder and Madonna perform "Purple Rain" during the tribute to Prince at the 2016 Billboard Awards in Las Vegas, Nevada, U.S., May 22, 2016. REUTERS/Mario Anzuoni
Musician Bill Withers (L) is inducted by Stevie Wonder during the 2015 Rock and Roll Hall of Fame Induction Ceremony in Cleveland, Ohio April 18, 2015. REUTERS/Aaron Josefczyk
Musician Stevie Wonder and actor Jamie Foxx, who is impersonating Ray Charles, present the Record of the Year award during the 57th annual Grammy Awards in Los Angeles, California February 8, 2015. REUTERS/Lucy Nicholson (UNITED STATES - TAGS: ENTERTAINMENT) (GRAMMYS-SHOW)
Singer Stevie Wonder (L) is congratulated by U.S. President Barack Obama after receiving the Presidential Medal of Freedom during a White House ceremony in Washington, November 24, 2014. The Presidential Medal of Freedom is the Nation's highest civilian honor, presented to individuals who have made especially meritorious contributions to the security or national interests of the United States, to world peace, or to cultural or other significant public or private endeavors. REUTERS/Larry Downing (UNITED STATES - Tags: POLITICS ENTERTAINMENT SOCIETY)
Nile Rogers, Stevie Wonder and Pharrell WIlliams (L-R) perform Daft Punk's "Get Lucky" at the 56th annual Grammy Awards in Los Angeles, California January 26, 2014. REUTERS/ Mario Anzuoni (UNITED STATES TAGS:ENTERTAINMENT) (GRAMMYS-SHOW)
First lady Michelle Obama greets BET honorees musicians Stevie Wonder (R), Mariah Carey (2nd R) and coach Beverly Kearney at the BET Honors in Washington January 14, 2012. REUTERS/Joshua Roberts (UNITED STATES - Tags: ENTERTAINMENT)
Oprah Winfrey greets singer Stevie Wonder during the taping of "Oprah's Surprise Spectacular" in Chicago May 17, 2011. Winfrey kicked off one of her last-ever national talk shows on Tuesday with hugs from Tom Hanks, Tom Cruise and Madonna in a packed Chicago arena. REUTERS/John Gress (UNITED STATES - Tags: ENTERTAINMENT PROFILE)
U.N. Secretary General Ban Ki-moon speaks about singer Stevie Wonder (R) during a news conference after he was appointed as a United Nations Messenger of Peace, at UN Headquarters, in New York, December 3, 2009. REUTERS/Chip East (UNITED STATES POLITICS ENTERTAINMENT)
Janet Jackson presents Stevie Wonder with the NAACP Image Awards Hall of Fame award at the 39th Annual NAACP Image Awards at the Shrine auditorium in Los Angeles February 14, 2008. REUTERS/Mario Anzuoni (UNITED STATES)
Tony Bennett (L) and Stevie Wonder accept the Grammy for Best Pop Collaboration With Vocals for "For Once In My Life" at the 49th Annual Grammy Awards in Los Angeles February 11, 2007. REUTERS/Lucy Nicholson (UNITED STATES)
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The sixty-nine year old, who has won more Grammy awards than any other artist and whose hits include "Superstitious", "I Just Called to Say I Love You" and "Isn't She Lovely", did not reveal what was behind him needing the transplant.
"I'm all good, I'm all good, I'm all good. I have a donor it's all good," he added after a supportive cheer from the crowd.
"I want you to know I came here to give you my love and to thank you for your love, you ain't got to hear no rumors about nothing, I told you what's up, I'm good."