Bill Burr said he did not appreciate Howie Mandel surprising him with Billy Corgan after the guitarist suggested they could be half-brothers.

The comedian reacted to the forced encounter by shaking the Smashing Pumpkins frontman's hand while telling Mandel, "You're an a**hole."

Bill Burr was not exactly pleased when Howie Mandel ambushed him mid-interview with Billy Corgan, his alleged half-brother

Bill Burr was not happy with Howie Mandel after his interview was crashed with a surprise appearance by Smashing Pumpkins lead singer Billy Corgan.

Bill Burr was the scheduled guest on the AGT judge's podcast Howie Mandel Does Stuff, and was unaware that Corgan would be making an appearance. The comedian, whose hilarious quotes might telegraph how he'd feel about being surprised on a podcast, was predictably miffed as he proceeded to call the other two out. Check out the segment below:

The comedian, 56, unloaded on Mandel, 69, after Smashing Pumpkins singer, Billy Corgan, 57, showed up mid-interview on the Jan. 21 episode of “ Howie Mandel Does Stuff .” “You’re an a–hole,” Burr told Mandel.

Are Bill Burr and Billy Corgan half-brothers? It's unclear, but in an awkward new interview, it appears they've developed a real brotherly bond over one thing—their shared beef with Howie Mandel.

Bill Burr then accused Howie of bringing Billy Corgan onto the show "for the fucking ratings." "He's bringing you in here, not because he's trying to heal the bullshit that we wen