Sharon Osbourne's management company represents which American frontman?
Sharon Osbourne Management:  Though mostly music acts, it has guided the careers of husband Ozzy Osbourne, children Kelly Osbourne and Jack Osbourne, as well as The Smashing Pumpkins, Coal Chamber, Queen, Gary Moore, Motörhead, Lita Ford, and ELO. The Smashing Pumpkins:  Formed by frontman Billy Corgan (lead vocals, guitar) and James Iha (guitar), the band included D'arcy Wretzky (bass guitar) and Jimmy Chamberlin (drums) in its original incarnation.
i don't know