Dave Mustaine was a featured soloist last night (Saturday, April 12) with the San Diego Symphony. The classical special sold-out concert, billed as "Symphony Interrupted", took place at the Copley Symphony Hall in San Diego, California. The event saw Dave perform Richard Wagner's "Ride Of The Valkyries" with the orchestra, as well as solos of Vivaldi's concertos from "The Four Seasons", plus Bach's classic "Air". Dave has posted the following message on his Facebook page. Fan-filmed video footage of the concert can be seen below.