Katy Perry Makes Pop Chart History

Just call her unstoppable!

Katy Perry's latest single "Last Friday Night (T.G.I.F.)" has become the fifth song from her "Teenage Dream" album to top Billboard's Pop Songs chart.

Aside from that, she made her movie debut in "The Smurfs", which just missed being the top-grossing movie of the past weekend, and is the only artist in MTV's VMA awards history to be nominated for four separate videos in a single year.