Lady Gaga [1] and Tony Bennett classed up the Grammy Awards [2], singing "Cheek to Cheek," a song off their recent album of duets. Even if you're not exactly lining up to buy tickets for their tour, you have to admit this performance is really entertaining. Lady Gaga is an amazing performer, and her voice pairs up with Bennett's shockingly well. Take a look at the video below to see them being ridiculously cute together.