TMZ — Charlie Sheen says John Mayer's lawsuit against famed watch broker Bob Maron has nothing to do with fake Rolexes ... it's all retribution because Charlie bumped John off the cover of "Rolling Stone." Charlie called in to "TMZ Live" and told us Mayerâ... more info

ContactMusic — Katy Perry went on a date with rapper Riff Raff.The 'Roar' singer seems to be putting her split with John Mayer firmly behind her since she was... more info

TMZ — Katy Perry's rebound after John Mayer -- Riff Raff?!!? Strange as it sounds ... we got the rapper talking all about his night with Katy -- but who brags about hooking up with one chick WHILE there's a different chick grinding on your crotch? Riff… ... more info

TMZ — Former NBA star Sam Cassell is a VERY happy man -- 'cause he just learned the expensive watch he bought from an allegedly crooked watch dealer is 100% REAL. TMZ Sports broke the story ... Cassell was extremely concerned about his A. Lange &… more info

Time — He would more info

TMZ — Heather Locklear is a little shaken over John Mayer's lawsuit ... claiming a big time watch dealer sold him counterfeit Rolexes ... because she got a Rolex from the same dude.Locklear's ex-hubby Richie Sambora tells TMZ ... he bought her a 1962 Roseâ... more info

ContactMusic — Charlie Sheen has blasted John Mayer for suing his friend.The singer-songwriter filed a lawsuit against Robert Maron, accusing the jeweller of... more info

TMZ — Charlie Sheen is BLASTING John Mayer for claiming he was defrauded by someone who sold him counterfeit Rolexes ... saying Mayer made a fortune off the watches and now just has a bad case of buyer's remorse.TMZ broke the story ... Mayer is suing Bobâ€... more info

TMZ — John Mayer's showdown with Charlie Sheen's BFF ... over fake Rolexes -- just got really interesting. Did Mayer put out a public plea for what he referred to as "counterfeit" Rollies? That's what the watch dealer's claiming ... and now Charlie's… ... more info

ContactMusic — John Mayer is taking legal action after it emerged that what he thought were vintage Rolex watches were fakes in a scam that has affected celebrities... more info