So here's "Troy" (Zac Efron) randomly selected to do karaoke at a Hogmanay party with "Gabriella" (Vanessa Hudgens). Neither fancy themselves as singers but after a shaky start.. Anyway, guess what? They are going to the same High School and decide to audition for the annual musical. He's the basketball captain-cum-heartthrob; she's a bit more of a mathlete but they are determined to go for the leading role - much to the chagrin of the established partnership of "Sharpay" (Ashley Tisdale) and brother "Ryan" (Lucas Grabeel). Now it's safe to say that his mates think he's letting the side down w...