Ke$ha + One Direction = super empty calorie pop that you can’t help but hate/love…oh, and dance to. Lots of dancing to this one.

Another instant classic Fallon clip. You’ve seen him Slow Jam with Brian Williams, and rock out with Justin Timberlake on History of Rap (Pts 1 and 2), now watch and enjoy this medley of the best TV show theme songs!

I love everything about this. Yes, I’m sad that there are no dancing animals with instruments in this video BUT Hanson singing Taylor Swift is just awesome. At least I think so. Whatever. Enjoy this guilty pleasure.

I won’t even pretend to be mildly cool in terms of music, but this is awesome – and has Michael Buble in it, which just raises its score on the awesome scale. Happy listening!