Twice each day we scan our YouTube metrics as well as websites on the cutting edge of internet culture to discover the most buzzed about videos.

The Lady Is a Tramp	Duduza Tornado	Shake It Out	Band Shufflin

1. Our Most Shared video today is Lady Gaga's duet with Tony Bennet.
2. Footage from South Africa of the devastating tornado that ripped through the area Sunday.
3. The latest music video from Florence + The Machine. As seen on PitchFork.
4. The University of Ohio marching band covers LMFAO's "Party Rock Anthem." As seen on Daily Wh.at.