Last Friday Night
Katy Perry has four #1 singles off her current album: California Gurls, Teenage Dream, Firework, and E.T. If current single Last Friday Night can rise from #2 to #1, she will tie Michael Jackson's record for most #1 singles off an album. That was a record I never thought would be equaled.
And if you haven't seen it, the video is hilarious. Look at the cameos: Debbie Gibson, Corey Feldman, Kenny G, Hanson, Rebecca Black, and two of the actors from Glee.