The "Nicest Kids in Town" are about to meet the New Directions as two generations of singing teenagers come head to head on Glee! On the upcoming premiere of the series' third season Lea Michele and the McKinley High crew are tackling "You Can't Stop the Beat," the fantastic finale number from the '60s-set Tony-winning musical Hairspray! Not enough Broadway for you? New cast member Lindsay Pearce, winner of this summer's Glee Project casting contest, will also perform a mash-up of two show tune classics: the title song from Anything Goes and Annie Get Your Gun's "Anything You Can Do." Take a listen to audio previews of the Glee version of these Broadway favorites below and remember to tune into Glee on September 20 on FOX.