Katy Perry Is Everywhere!

Lots of artists pay homage to each other, and lots of fans like to play like the rock stars, and thanks to the internet we can see them all! Katy Perry seems to be the artist du jour right now.

Check out some of these videos:

A Ukranian polka band covering 'Hot N' Cold'.

Glee paying homage with their version of "Teenage Dream'.

Tyler Ward's acoustic take of 'Teenage Dream'.

A crazy A cappella cover of 'Teenage Dream".