Howie Mandel said he feels "horrible" about angering Bill Burr by surprising him with his possible half-brother, Billy Corgan, in an interview.

Howie Mandel apologized for ambushing Bill Burr and Billy Corgan in the midst of their alleged half-brother drama. “I want to apologize. I feel horrible,” the “Deal or No Deal” host, 69, said on his “Howie Mandel Does Stuff” podcast on Tuesday.

Howie Mandel has publicly apologized to Bill Burr and Billy Corgan, following an awkward incident on his podcast last month. "I want to apologize," Mandel said Tuesday on his Howie Mandel Does Stuff podcast.

The AGT host made things awkward last month when he surprised Burr by bringing on his alleged half-brother Corgan.

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.