You know it's almost the new year when mash-ups and medleys of the past year's hit songs begin cropping up. One of the great ones we've recently come across is this pop medley by Sam Tsui on vocals and Kurt Schneider on keyboard. The duo cover Lady Gaga's "Edge of Glory," Nicki Minaj's "Super Bass," and Katy Perry's "Last Friday Night," among others.

Check out the track below.

(Screencap courtesy of TheSamTsui on YouTube)