On this weeks season finale of Entourage, Matt Damon cameoed, as himself, in full-on charity mode. Damon tried to shake down Vinnie Chase for a charitable donation for the One By One foundation. When Vince only offers $20,000, Damon, along with cameos from LeBron James and, hilariously, Bono, urge him to give more.
After the end credits for the show ran, the above clip served as an "easter egg" bonus. Apparently the promised bigger check of "a buck fifty" never arrived and nothing gets Damon more upset than people that don't follow through with their charitable donations.
Pretty funny stuff.