"I Can Only Imagine," the mega-hit from MercyMe, turns a decade old in 2009, and on April 7 the band is pulling all the stops to celebrate the occasion. A new version of the song recorded with the London Symphony Orchestra will be included on "10," a commemorative CD/DVD bundle that also includes all 11 of MercyMe's #1 singles, plus the unreleased "Only Temporary" and the concert favorite "10 Simple Rules."