Just when we thought Glee, which premieres on Fox immediately following the eighth season finale of American Idol, couldn't get any cooler, the cast has sent a message to potential viewers:

Don't stop believing.

Check out the latest promo for the series, as it focuses on a Journey classic:

[video url="/videos/glee-preview/" title="Glee Preview"][/video]

Matt Richenthal is the Editor in Chief of TV Fanatic. Follow him on Twitter and on Google+.