What's on Your Playlist?

I run alone more than with a group, so I'm always looking for some lively music to help get me out the door. I just added five more songs to the running playlist on my iPod Shuffle:

Hot n Cold -- Katy Perry
Home -- Phillip Phillips
Feel This Moment -- Pitbull
Raise Your Glass -- Pink
#ThatPower -- will.i.am

What songs have you recently added to your workout playlist?