🎶 We're all in this together 🎶 "High School Musical" turns 20 today! 🏀 The film premiered on Disney Channel on January 20, 2006. ⁠ ⁠ Here, the cast Lucas Grabeel, Vanessa Hudgens, Zac Efron, Monique Coleman, Ashley Tisdale and Corbin Bleu pose for a photoshoot in 2006. l 📸: fscottschafer l Corbis l #ContourbyGetty⁠ #GettyEntertainment