05:14 PM EDT 02/29/2016
Originally posted 09/20/2015 03:35PM
John Mayer and Katy Perry are "definitely back together," a source tells PEOPLE of the ever on-again, off-again couple.
Originally posted 09/04/2015 06:00PM
Nobody knows how to party quite like Miley Cyrus.
Originally posted 07/06/2015 04:00PM
Katy Perry and John Mayer may have been making fireworks of their own over the weekend – the on-and-off couple got cozy at the Grateful Dead farewell concert series in Chicago.
Originally posted 06/23/2015 06:05PM
The star told GQ he read our post last year, and he has some notes
Originally posted 05/27/2015 12:00PM
Are Katy Perry and John Mayer back on again – or have they simply bonded platonically over a shared appreciation for Space Mountain?
Originally posted 05/25/2015 01:40PM
Katy Perry might sing about "The One That Got Away," but she doesn't want to waste her time talking about him.
Originally posted 04/13/2015 02:50PM
If David Letterman's only goal for his final weeks as Late Show host is to to welcome a galaxy of A-list stars, he has more than succeeded.
George Clooney, Julia Roberts, Robert Downey Jr., Tom Hanks and Oprah Winfrey are just a few of the top-liners sending off Letterman after more than 20 years behind the desk at the Ed Sullivan Theater.
On Monday, the host announced which celebrities will be appearing on his final 28 broadcasts of the Late Show, airing on CBS over the next month and a half in advance of the show's grand finale on May 20.
Originally posted 03/06/2015 06:45PM
Visit NBCNews.com for breaking news, world news, and news about the economy
Originally posted 02/18/2015 05:00PM
And we're forever grateful
Originally posted 02/08/2015 11:55PM
Dreamy sighs were heard 'round the world when Ed Sheeran and John Mayer took the stage together at the Grammy Awards on Sunday.
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