John Mayer

The pair were first spotted together in February.

Taylor Swift once sang about her crush on Owl City.

The Canadian pop star is a longtime fan of the "Daughters" singer.

John Mayer and Jeff Ross went live on Instagram this week as they were returning from picking up Bob Saget's car from LAX.

"So it's a fun thing people are doing without taking into account that I might see it and be affected by it?"

John has been testing out his hosting chops.

The 2000s had some pretty questionable celebrity fashion moments.

He's a huge fan of her love ballad.

They're almost unrecognizable!

John Mayer has added a North American leg to his upcoming 2019 world tour.

Let him explain.

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.

And the verdict is...

Speaking to CNN, 'Watch What Happens Live!' host Andy Cohen went in on those John Mayer dating rumors.

From Kanye West to Katy Perry, every time Swift has enacted musical revenge.