Katy Perry

There are literally too many celebrities to list.

Ashlee Simpson is just one of many stars who bungled sets on TV's most coveted stage.

These fans went *way* too far.

Katy appears to be showing support for Taylor amid the pop star's drama with Scooter Braun.

We finally know how the two pop stars found peace.

From Halsey to Blackpink, these are the best songs of 2019.

The pop stars have officially buried the hatched.

Dion seems to like her pop-stars particularly well-done.

Perry literally lit up the room!

From Kanye West to Lady Gaga, these songs faced serious backlash.