Michael Jackson may have passed away four years ago, at the age of 50, but stars took to Twitter today to wish him a happy birthday.
Today would have been Michael's 55th birthday and not a year goes by without stars sending him birthday wishes.
Diddy, Justin Bieber and more celebrities took to Twitter to remember the late King Of Pop today, some regarding him as "the greatest."
Rapper Diddy, also known as Sean Combs, tweeted: "Happy Birthday to the greatest performer of all-time Michael Jackson!!! There’s only one KING!!"
Pop superstar Justin Bieber also wished the 'Thriller' star birthday and tweeted: "Happy birthday MJ. #thegreatest #RIP"
Mariah Carey tweeted a photo of her and the late singer on stage and captioned: "Remembering Michael Jackson #KingOfPop #tbt"
Lionel Richie was not one to forget his friend's birthday and tweeted: "Happy Birthday dear friend! #TBT with Michael Jackson #GRAMMYs" along with an old photo of the two at the Grammys.
Lionel Richie tweeted a photo of him and the late Michael Jackson at the Grammys (Photo: Lionel Richie Twitter)
American singer-songwriter Debbie Gibson posted a video of herself singing a rendition of Michael's 'She's out of my life' and tweeted saying: "Barely awake but upon hearing it was @MichaelJackson bday had to sing…"
Two weeks earlier, a track, featuring both Michael and super fan Justin Bieber leaked online.
"Slave To The Rhythm" was a little-known song by Michael that made its way online after his death in 2010 and the new version appears to be a remix of that track.
Happy Birthday MJ!