John Mayer

Katy Perry and John Mayer were seen, once more, getting cozy during a Grateful Dead show.

Maybe we can all relate to John Mayer a little more now. In a recent interview with Ronan Farrow, one of Montana’s most famous residents opened up about music and Montana.

John Mayer guest-hosted 'The Late Late Show' last night (Feb. 4), and of course, he couldn't resist gushing about Katy Perry's epic Super Bowl performance.

The 2014 Made in America Festival Philadelphia lineup has officially been announced -- and Kanye West, Kings of Leon and Pharrell are among the biggest names on the list.

A single singer impersonating various other voices is, like, all the rage on YouTube right now. We've had an off-Broadway talent channel everyone from Demi Lovato to Alanis Morrisette in one tune and a guy singing 'Let It Go' in the voices of various Disney-Pixar characters. Now enter YouTube star Roomie, who impersonates everyone from Adam Levine to Fall Out Boy in his new video, 'One Guy, 14 Voi

Even though Katy Perry's first marriage ended in divorce after only 14 months, the singer's relationship with reformed Lothario John Mayer is going so well (despite that hiccup this past spring), that sources say it's pretty certain that they will get engaged.

Katy Perry and John Mayer are getting super serious, but as anyone who's followed their tumultuous relationship knows, they've had quite a few ups and downs -- including quite a few splits -- in between. Thankfully, though, those are behind them ... and they even inspired Perry's smash hit, 'Roar.'

With the release of his new album "Paradise Valley" debuting at #1 in the states, John Mayer has added more tour dates this year after a very successful summer run. Tour dates here:

Off and on couple John Mayer and Katy Perry are firmly back on -- possibly permanently, if he has anything to say about it, because some sources are saying he's asked her to marry him.

John Mayer and Katy Perry are back together in a big way. It's not only good for their careers (they keep gushing about one another to the press to promote their new albums 'Paradise Valley' and 'Prism'), but also for their hearts. Turns out, Mayer is even considering taking the next step with Perry. What's that step?

Katy Perry admitted to being madly in love with John Mayer in her Vogue cover story earlier this summer, despite being broken up at the time. They were seemingly reunited on Fourth of July and now, they get romantic on the song 'Who You Love,' a slow-burning, 'early '80s-inspired soft rock duet.

John Mayer has really turned his act around, and his latest "awww"-worthy deed might just be his kindest act yet.