Demi Lovato!

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

The pop star is stepping away from Instagram for a 'little while.'

The pop star had the BEST response.

Demi appeared to make clear which side she's on.

The new ink proves the pop star is committed to putting herself first.

The pop star told fans what they can expect from her new album.

Our hearts are still breaking for these former couples.

He was caught trying to shoplift a Macy's store.

So many stars have had their privacy invaded.

She set the record straight about her relationships with the pop stars.