A Riverside voice teacher who recently got the gig of a lifetime will be heading back to the stage of the Hollywood Bowl. 

Sarah Horn became an Internet sensation last week when she was pulled up on stage to sing an impromptu duet with her idol Kristin Chenoweth during Chenoweth's concert at the Hollywood landmark. 

Now, Hollywood Bowl officials have announced they are bringing Horn back to act as a judge for their Abba-Capella competition on September 8th. 

Three local groups will face off in an a capella competition where they will sing the hits of Swedish pop sensation Abba.