Word that Simpson and Mayer were an item began circulating last August but the couple were mum on the topic. Her divorce from singer Nick Lachey was finalized last June.
And many people may have thought he was a jerk after his extremely candid interview with 'Playboy' in 2010.
Celebrity blogger Perez Hilton first reported news of a split on his blog. P at Christina Aguilera's New Year's Eve bash at the Hudson Hotel in New York City.
The pair were hand in hand just over a week ago at the Metropolitan Museum of Art's Costume Institute Gala on May 7 in New York City. Simpson also recently spent time with Mayer in Italy.
Related: Remember When Lorde Said Diplo Has A Tiny Penis? Katy Perry is filling up her livestream weekend with all sorts of newsworthy and… When Katy opted to answer a question, Corden came with it: rank your famous lovers, best to worst. [artist id="1220799"]John Mayer[/artist] has never been one to hold his tongue, whether freely tweeting his innermost thoughts or confessing his insecurities in the middle of a concert.But his latest foray into the familiar territory of speaking-his-mind-no-matter-the-consequences comes in a new interview, which has already unleashed a strong backlash online.American recording artist, actress, television personality, fashion designer and businesswoman.Simpson rose to fame with the release of her debut single, "I Wanna Love You Forever".