Keenan Cahill, the YouTube phenom who suffers from a rare disease, has teamed up with te Giants' Brian Wilson and Cody Ross -- and that wacky seal -- for this latest lip-syncing video. The video is part of a fundraiser Ross and Cahill are promoting that's taking place at a Giants game next month.
This is hands down the funniest thing I've seen all year and I've watched it five times so far -- you won't want to watch it just once, either! If you didn't love the misfit Giants before ... well, you're heartless if you still feel that way after watching this. Learn more about Cahill by clicking here. In the meantime, check out the video: