Billy Corgan still doesn’t know if Bill Burr is his half-brother — and he hasn’t taken a DNA test to find out. Corgan said he had to convince his friends that him ambushing Burr, 56 ...

When Billy Corgan appeared as a surprise guest on Howie Mandel’s podcast in January to talk to Bill Burr about the small, but not impossible, chance that they were half-brothers, fans were divided.