![Keenan Cahill Lip-syncing Katy Perry’s Last Friday Night With Glee Cast Members [VIDEO]](http://townsquare.media/site/74/files/2011/07/hqdefault6.jpg?w=980&q=75)
Keenan Cahill Lip-syncing Katy Perry’s Last Friday Night With Glee Cast Members [VIDEO]
If you're not familiar, Keenan Cahill is a teenager from Illinois who has Maroteaux–Lamy syndrome, which sometimes causes physical features that appearance similar to those of dwarfism. Keenan has made himself famous by lip-syncing popular songs and uploading the videos to YouTube...

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