With more than 7 million Twitter followers and his frequent speaking engagements at tech conferences like Fortune's Brainstorm and TechCrunch Disrupt, it's safe to call Ashton Kutcher a social ...

Charlie Sheen to Howard ... But his tiger blood seemed calm when Stern asked him about the rumor that John Stamos might be called upon to fill Sheen’s shoes on Two and a Half Men. (For the ...