John Mayer

Taylor Swift once sang about her crush on Owl City.

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

"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.

Other country performers at the 2021 Grammy Awards include Miranda Lambert, Mickey Guyton and Brandi Carlile.

Check out cringe-worthy fashion fails from our favorite celebrity couples.

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?