Katy Perry

The pop star hit rock bottom after low moments in both her personal and professional lives.

The infamous blogger is up to his old tricks.

Your wholesome content for the day!

This is Perry's most over-the-top costume yet.

The show will go on.

The pop star announced the news in her 'Never Worn White' music video.

From Gwen Stefani to Scarlett Johansson, these stars have been accused of being culture vultures.

Katy fell to the ground.

From Kim Kardashian to Tom Hanks...

From members of BTS to Lady Gaga, check out how 25 celebrities chose their stage personas.