Happy Throwback Thursday, M Girls! Since Zac Efron let it slip yesterday that he'd totally be game for a High School Musical reunion, we can't stop thinking about our favorite throwback concerts, like HSM: Live in Concert. (Come on — it was SUCH a good show!)
That being said, M's taking a look back at some of our fave tours. Honestly, we wish they'd never ended! Remember Justin Bieber singing "One Less Lonely Girl" on the My World tour? Or what about the days when One Direction opened up for Big Time Rush? Oh, the memories!
Click through the gallery for a total blast from the concert past! Which tour do you wish you could bring back? Tell us in the comments!