Watch: John Stamos Shares Hilarious Way Son Billy, 7, Name-Drops Him to Impress GirlsEverywhere you look, there's John Stamos serving a new look. Indeed, the Full House actor elevated his signature brown hair with blonde highlights, and this transformation would make Uncle Jesse-and his shiny, bodacious mullet-do a double take. In his Jan. 13 Instagram video, the 62-year-old shared a close look at his makeover. Explaining that he's learning to "trust the process," his longtime hairstylist Riawna Capri lightened the front section of his hair with aluminum foil.