By USAToday.com Smashing Pumpkins frontman Billy Corgan has not clarified the status of his relationship with Jessica Simpson, but he did have plenty to say about her ex, John Mayer. Corgan tells Rolling Stone he’s convinced that the controversial singer is determined to kill his once white-hot ...

By People.com When Jessica Simpson released photos of her laughter-filled recording sessions with Smashing Pumpkins frontman Billy Corgan last month, buzz that the two are dating reached its highest volume yet. At the time, a source told PEOPLE, “He got her number and starting calling her. He thought ...