It's almost time for your favorite shows to return with all-new episodes, but why wait until September to see new footage?

Below you'll find the new promos for NBC's 'The Sing-Off,' Fox's 'Fringe' and CBS's 'Hawaii Five-0.'

'The Sing-Off' video from E! Online features new judge Sara Bareilles in action and tons of talent.

The 'Fringe' promo -- thanks to Give Me My Remote for pointing it out to us -- has Walter sitting in front of a bunch of speakers, listening to music when suddenly -- well, just watch.

And last but not least, 'Hawaii Five-0' features new footage of the team and McGarrett's mentor John Locke 'Lost' star Terry O'Quinn.