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
The Mowgli's - San Francisco - YouTube
Clint Eastwood GIFs
Japanese girls' precise dancing through holes in a moving wall - "VOICE" music video by Perfume
Watch Saturday Night Live: Director's Cut: Lincoln online | Free | Hulu