02/17/2012 12:56 pm ET Updated Feb 17, 2012

Joan Rivers Bashes Jay Leno, Dane Cook On 'Watch What Happens Live' (VIDEO)

Joan Rivers stopped by Bravo's "Watch What Happens Live" Thursday night to talk red carpet fashion, Whitney Houston, and Betty White -- but things heated up when Jay Leno was mentioned.

Rivers, who has been in a feud with "The Tonight Show" since the early 80s when then-host Johnny Carson blacklisted her for leaving to host a show of her own, is just now breaking back into the late night scene. Hosts like Jimmy Fallon and David Letterman are inviting her onto their programs, but Leno is still holding tight to "Tonight"'s traditional no-Rivers policy.

At this point in her career, Rivers doesn't seem to care whether or not the 24-year feud is ever resolved. "He's not funny, so who gives a sh*t?" she said to Andy Cohen.

The antics didn't stop there, though. Later in the episode, Rivers went on to comment that Dane Cook has never made her laugh. "Somebody explain to me, cause I don't get it. I'm willing to learn, I don't get it."

You can watch even more clips from the interview here.

Via Buzzfeed