Appearing on Stern's satellite radio show earlier today, fellow comic Craig Gass revealed he had caught up with the 42-year-old Lange at the club, posting a photo of Lange on Facebook to prove it. By all accounts, Lange looks slimmer and happier.

"He seemed fine," an eyewitness to Lange's stand-up act tells E! News. "He was speaking with these other comedians and he was joking around. Everyone was very very happy to see him and it was a very nice occasion."

The former MADtv regular and Stern sidekick was hospitalized on Jan. 2 His mother found him unconscious in his Hoboken, N.J., residence, after he tried to take his own life by stabbing himself in the abdomen nine times.

In the month before the incident, Lange had taken a hiatus from Stern's show and canceled several stand-up gigs. No word when, or if, he'll be returning to his former radio gig.

But in any case, welcome back, Artie!