Another musical milestone for Mitch occurred in the early 1960s, at the age of 8, when he was chosen by the Beach Boys to sing back up on the song "Don't Worry Baby" for a Battle of the Bands contest, because his brother Buzz surfed with the famous band, and Mike Love liked the sound of Mitch's voice. In 1995, Mitch threw a charity concert with the Surf-Rider Foundation to build a pipeline to divert a storm drain that was polluting the coast. Using Buzzy's connections, he got the Beach Boys to perform at the concert, singing the song "Summer in Paradise." Mitch's claims of singing with the Beach Boys as a youngster may be dubious, as in the very same episode, Mike Love didn't seem to remember Mitch as well as he remembered Buzz.