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
Infographic: The World's 10 Vainest Skyscrapers | Co.Design
Ed Sheeran - "You Need Me, I Don't Need You" captured in The Live Room - YouTube
Tens of billions of Earths, just around the way
How To Make A Hit Pop Song: You Look Sexy When You Do That