Fans are finally getting their prayers answered! Newly-single Vanessa Hudgens is reuniting with her famous ex Zac Efron, but it's not what you think. The duo, formerly known as Zanessa, will be back together for one night only, joining their "High School Musical" cast for an at-home singalong. According to Deadline, the gangs all in and besides Hudgens and Efron the program will also feature stars Ashley Tisdale, Corbin Bleu, Monique Coleman, and Lucas Grabeel. The director of the 2006 Disney movie, Kenny Ortega, told the outlet that Efron was the last of the bunch to sign onto the project.