'Last Comic Standing' judge Greg Giraldo has died, according to his friend and fellow comedian Jim Norton.

"Greg Giraldo passed away today. This is the last photo of us together, taken June 28 at Noam's wedding. RIP buddy," Norton wrote on his Twitter account.

A source told TMZ, "Greg passed away today at the hospital in New Brunswick as a result of an accidental overdose. His family was by his side."

The 44-year-old comedian was hospitalized Saturday.

Giraldo, who recently helped roast David Hasselhoff on Comedy Central, was found unresponsive during a party at his hotel in East Brunswick, New Jersey. "It was like a zoo here," an eyewitness said of the bash, The New York Post reported.