Watch Sonic Brew's audition video for In-N-Outs 75th Anniversary Concert https://www.youtube.com/watch?v=2CSyRsnjWdw [custom-twitter-feeds feed=1] Formed 1999 Originally named 'Switchback' and later renamed to 'Sonic Brew' in 2010. SB has been playing their hard rock and metal music all over southeastern Idaho and northern Utah for over 20 years, spanning 3 studio albums and are currently working…