From the 107.7 The End blog:

The End, IMEEM and DeVry University bring to you the Battle of The Bands. Submit your best song and you might just be the band selected to play on stage at Endfest 16 in Seattle. Submission deadline is Sunday, April 22nd @ 3:00pm (PT).  

All bands in Washington state can enter. I generally cringe at anything called "Battle of the Bands," but hey, playing Endfest could be cool, right? Follow the link above for full directions on how to enter.