BREAKING: Amy Winehouse Found Dead, Diddy, Big Boi, Usher & Q-Tip React

Grammy-winning singer Amy Winehouse has left fans in mourning this weekend as reports have emerged claiming the 27 year-old songbird was found dead in her London home.

While an official explanation has not yet been presented, reports claim the singer overdosed.

Amy Winehouse has been found dead at her home in London. The Back To Black singer was found at the property by emergency services at 3.54pm. Her death is being treated as 'unexplained' by police. Winehouse was apparently 'beyond help' when paramedics arrived, according to Sky sources. Sources have also claimed Winehouse's death was due to a drug overdose. (Daily Mail UK)

Bad Boy Records CEO Diddy offered his condolences to Winehouse.

"RIP Amy Winehouse," Diddy tweeted Saturday (July 23). (Diddy's Twitter)

OutKast's Big Boi shared his reaction to the "Back to Black" songstress.

"Kurt Cobain, Janis Joplin, Jim Morrison, Jimi Hendrix and now Amy Winehouse. All died aged 27. RIP to you all. #amywinehouse," Boi tweeted. (Big Boi's Twitter)

Music veteran Q-Tip reflected on his last conversation with Winehouse.

"D*mn!! Amy.....," he tweeted.

"RIP. AMY WINEHOUSE. What a loss!!! So young.... D*mn!!"

"The last time I spoke 2 amy I told her let her light shine more" (Q-Tip's Twitter)

R&B singer Usher also revealed his shocked reaction to Amy's death.

"I'm so sad to hear the horrible news of Amy Winehouse's death. I'm so happy I knew you Amy...Rest Well. Gone Too Soon...we'll miss you!!" (Usher's Twitter)

In 2007, Winehouse released her sophomore album Back to Black.

One month after Winehouse won Best Female Artist at the Brit Awards in February 2007, Universal released Back to Black in the U.S. The LP charted higher than any other American debut by a British female recording artist before it, and it remained in the Top Ten for several months, selling a million copies by the end of that summer. Just as in the U.K., she became the talk of the town, landing on the covers of Rolling Stone and Spin magazines. Not long afterward, though, Winehouse canceled her North American tour. Early reports revealed that she was entering rehab for alcohol and drug addiction, but her new management denied the claims, stating it was due to severe exhaustion. (All Music)