I've written about Sam Tsui here before. The Yale student is an incredible singer who wowed you with this kickass a capella Michael Jackson medley. His latest viral sensation is a red-hot Lady Gaga medley with collaborator Kurt Hugo.
No multi-track things this time -- just him and the guitar guy. But as I write this, the YouTube video has been viewed more than 1.4 million times. I don't even like Lady Gaga's music, but I can't deny this performance is pretty impressive.
