I just wanna dance.
According to the fabulously entertaining website, LETSDANCE.TO "is an app that syncs new songs with old video clips of dancers." The site gives you options of several choreographed dance videos and provides modern music to accompany them. Whether you get jazzercizers breaking a sweat to Lady Gaga or Napoleon Dynamite jamming to Of Mice And Men, it's a mesmerizing look at music, dancing, and how everything can fit together.
Whatever it is, it's awesome.