It's by Fleetwood Mac:
It's funny to watch Paul Rudd dance to this song in the 12-7-2013 episode.
Too bad that's not on YouTube,
Stashed in: Music Videos!, SNL
Grumpy Cat Tard, Andrew WK, Deadpool, and Spider-Man
Manning Football On Your Phone Gifs
Stefani Germanotta before she became Lady Gaga.
Miley Cyrus - We Can't Stop