Bill Burr says he 'didn't appreciate' being ambushed with Billy Corgan on Howie Mandel's podcast: 'Howie did what he did because he is a Hollywood whore and he doesn't care what happens.'

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.

The actor and comedian made a recent appearance on an episode of the Howie Mandel Does Stuff podcast, where the host surprised him with Billy Corgan, the Smashing Pumpkins guitarist who previously revealed that the pair might be related.

During a Monday appearance on "The Rich Eisen Show," the comedian, 56, slammed Mandel for surprising him with Billy Corgan during a recent podcast interview. Mandel framed the ambush as a family reunion, as the Smashing Pumpkins frontman previously theorized that Burr might be his half-brother.

In November, Billy Corgan revealed Burr might be his half-brother while on the “Howie Mandel Does Stuff” podcast. Earlier this month, Mandel then secretly brought on the Smashing Pumpkins frontman during Burr’s interview. Burr shared he was not a fan of how the meet and greet went down.

The unexpected feud between comedian Bill Burr and America’s Got Talent judge Howie Mandel is gaining steam, with both men publicly trading barbs. It all started when Burr appeared as a guest on Mandel’s podcast,