Watch the hair! John Stamos hasn't aged a day since Full House went off the air in 1995. Almost 20 years later, he still looks and sounds exactly the same. Case in point? In July 2013, he appeared on Late Night With Jimmy Fallon in character as Jesse Katsopolis to perform with his old band, Jesse and The Rippers. Donning his signature mullet and leather vest, he sang a medley of songs from the show, including the theme song and a cover of the Beach Boys' "Forever."