Best Of Biggest Celebrity Sports Fans July 21, 2014 / 6:00 AM PDT / CBS News Usher- Cleveland Cavaliers George W. Bush- Texas Rangers John Cena- Boston Celtics T.I.- Atlanta Hawks Jessica Alba- Golden State Warriors Justin Tuck- New York Rangers Matthew McConaughey- Texas Longhorns Ashley Judd- Kentucky Wildcats Frankie Muniz- Los Angeles Clippers Lady Gaga- New York Yankees Jack Nicholson- Los Angeles Lakers Drake- Toronto Raptors Tracy Morgan- New York Knicks Will Ferrell- USC Trojans Mike Myers- Toronto Maple Leafs Vince Vaughn- Chicago Blackhawks Tiger Woods- Stanford Cardinal LeBron James- Dallas Cowboys Nelly- St. Louis Cardinals