Lady Gaga and Katy Perry mash-up becomes online hit
Sam Tsui and Kurt Schneider's "Pop Medley 2011" has become an internet sensation, attracting over a million viewers in just three days.
The video combines Lady Gaga's 'Edge of Glory', Katy Perry's 'Last Friday Night' amongst other pop songs from 2011.
It has become an online sensation by scoring over a million hits since being posted on November 3.
The newly-famous duo are made up of singer Sam Tsui and producer Kurt Schneider.
They say that they simply chose their favourite songs from the summer to make the medley.
At the end of the video the boys declare: "Hope you guys enjoyed that video, we had a lot of fun making it."