Kanye West

Justin got the crowd to join in.

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

These stars have found a way to defy aging.

The video features cameos from Kim Kardashian, Kris Jenner and more.

Taylor didn't hold back.

From Kanye West to the Jonas Brothers, these music concerts had their plug pulled.

The pop star is giving her side of the story.

From donut-licking to (fake) severed heads, these celebrity antics had us in a tizzy.

From Katy Perry to Justin Bieber, here are some of the biggest names who have had beef with pop star Taylor Swift.

Swift is the top-earning celebrity this year!