John Mayer

He 'accidentally' sang the pop star's song from 'Thank U, Next' instead.

Jessica Simpson's love life is ~irresistible~.

The 2000s had some pretty questionable celebrity fashion moments.

He's a huge fan of her love ballad.

They're almost unrecognizable!

Remember when Kanye West called Taylor Swift out for lying?

The two stars were reportedly seen flirting at a 'GQ' party recently.

The pair set the record straight in the latest episode of Mayer's 'Current Mood' show.

John Mayer can't stop, won't stop flirting with Halsey.

Learn about how Drake's 30th birthday helped him stop drinking.

Halsey shuts down rumors that she's dating John Mayer with a single tweet.

Halsey and John Mayer have been flirting it up on Instagram, leading fans to believe they're more than just friends.