I was doing mini-deep dives into this yesterday, I watched the whole Howie interview with my man Bill Burr. In the first part of the interview, it's just Bill givin' Howie and his daughter some shit; he's low-key roastin' them with love. Then over half-way into the pod, Howie says to Bill that he has a surprise for him and that's when Billy Corgan comes out. Burr is appalled and frustrated, however he's a good sport about it: he light confront Howie about why would do this.
Eventually, Howie and his daughter leaves so Billy and Bill can be alone, but it's interesting and it's a little awkward, but it's interesting. Then out of nowhere former E-TV Billy Bush appears outta nowhere and it's the convergence of the BILLS: Billy C./Bill B./Bill B., in spirit of Beyonce ~~Bills Bills Bills.
Anyway, Bill Burr called for Howie to come back and he does; however it doesn't end well. There is no fight or arguments; however, the whole thing you can tell doesn't sit well with Bill Burr. Anyway, Bill Burr asks Billy Corgan if he wants to get a quick bite to eat so they can continue their conversation privately.
Here's how Billy Corgan made his possible relation to Bill Burr public:
Here's the full Howie Mandel interview with Bill Burr and Billy Corgan: