LOS ANGELES (Billboard) - "Dream" on, Gleeks: It looks like the show's rendition of "Teenage Dream" is going to debut big on the Billboard charts next week. The "Glee" cast's take on Katy Perry's No.

Catching random clips of Glee makes the Fox series seem like a fever dream, and it kind of was. A teacher walks in with zero experience, takes myriad high school tropes, and turns them into an ...