Trailer for High School Musical 3 Shown Before Mamma Mia

We can personally report that the trailer for High School Musical 3: Senior Year is being shown in thousands of theaters across American today, coinciding with the release of another musical, Mamma Mia. However, we can't promise that it'll be shown in all theaters.

But it's not like you guys haven't seen it yet! But if you haven't, here it is!