Demi Lovato

Our favorite, once-inseparable celebrity besties and their unfortunate fallouts.

From Rihanna to Lana Del Rey, check out 25 times celebrities took the time to fire back at fans.

These celebrities have been victims to intrusive hacking.

From Halsey to Demi Lovato, see all the best Halloween costumes so far.

From George Clooney's tequila to Lauren Conrad's clothing line, check out 25 celebrity side hustles you may have never heard about.

These celebrities are sober.

Check out Demi Lovato's best red carpet looks from over the years.

And we love them for it!

Did your faves make the top five?

Demi's 21 Savage Super Bowl joke fell a bit flat.

Check out 15 celebrities who made a dramatic exit from social media.

Celebrities are getting in on the #10YearChallenge fun, sharing old photos of themselves.