Photos of Vanessa Hudgens licking a mysterious white substance off her fingers while at Coachella this weekend have sparked rumors that the 22-year-old starlet was doing drugs. But her rep has come to her defense. What exactly is the white goop? Vanessa was snapped by the paparazzi sticking her fingers into a small bag and ingesting a white substance. OK! GALLERY: STARS ROCK OUT AT COACHELLA MUSIC FESTIVAL OPENING DAY Her rep told E! News that the gooey white substance was just melted "white ... Read More >>