While 'Glee' is centered around New Directions, Season 2 proved to be just as much about the Warblers, which is why Darren Criss and the Dalton Academy singing group get their time to shine in 'Glee: The 3D Concert Movie.'

The film doesn't hit theaters for another two weeks, but a new audio clip posted by Entertainment Weekly gives Gleeks a sneak peek at what's in store. Naturally, the Warblers perform the song that catapulted Criss into the spotlight, Katy Perry's 'Teenage Dream,' and the audience still can't get enough of it.

In the clip, Criss' smooth vocals and the Warblers' lush harmonies are accompanied by the audience, who, in their sing-along, end up acting as a choir themselves. However, the crowd doesn't sustain their part for long -- their vocals soon dissipate into the sound of screaming fans.

'Glee: The 3D Concert Movie' will include plenty of hits from the first and second season of the show, including Naya Rivera's cover of Amy Winehouse's 'Valerie.' Gwyneth Paltrow also makes an appearance in the film, singing her rendition of 'Forget You.' Jane Lynch, aka Sue Sylvester, also stars in the upcoming release, which hits theaters on Aug. 12.