Bill Burr slams Howie Mandel after Smashing Pumpkins singer, Billy Corgan, shows up mid-interview

Bill Burr isn’t happy with Howie Mandel after the latter invited an unwanted guest onto their podcast episode. 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.”