The 'Let It Go/Let Her Go' MASHUP From Sam Tsui Listen to this awesome Demi Lovato/Passenger mash-up!
50 Great Songs From 2012 Mashed Into One TrackWatch and see if your favorite song from the year made the cut.
President Obama Covers Carly Rae Jepsen's "Call Me Maybe"
"Miracles": The Crazy New Mash-up