Hollywood's power elite came out to show their love for Conan O'Brien Saturday, with a slew of bold-faced names attending the Legally Prohibited From Being on Funny Television tour's stop at the Gibson Amphitheater.

As O'Brien noted, the venue was "literally just 400 yards away" from NBC Universal's West Coast HQ.

"If you listen carefully, you can hear the sound of bad ideas being greenlit," Coco quipped.

But plenty of showbiz A-listers thought hangin' with Conan was a good idea. Particularly since O'Brien's reps at William Morris Endeavor were nice enough to throw a backstage bash before the show for a variety of celebs, producers and, of course, agents.

Among those cuckoo for Coco backstage: Russell Brand and g.f. Katy Perry, Jim Carrey, Jonah Hill, Craig Robinson and "Parks & Recreation" stars Aziz Ansari and Nick Offerman. Behind-the-scenes types also were out in force, led by Comcast Entertainment Networks chief Ted Harbert, Katherine Pope (the ex-NBC exec who now runs Peter Chernin's TV company), "The Office" producer Greg Daniels, his wife (and former Lifetime entertainment boss) Susanne Daniels and "The Cleveland Show" exec producer Rich Appel.

Meanwhile, how's this for classy: NBC late-night chief Rick Ludwin showed up, too. Ludwin was the man who ensured Conan survived his early days at NBC, when some forces inside the network were determined to dump him.

O'Brien's WME point person, Rick Rosen, was at the show, of course, as was O'Brien manager Gavin Polone.

Some of the celebs made their way on-stage during O'Brien's command performance. Carrey performed a duet of Five for Fighting's "Superman" (click here for video of that performance [5]) while Ansari and Hill came up to pull the Chuck Norris handle of clip fun. "Mad Men" star Jon Hamm also made a cameo.

Coco plays the Gibson again on Sunday. He'll be in Las Vegas next weekend.