Have you ever sung in the shower, air guitared in your room, secretly performed a drum solo? Well now you can let go of your inhibitions and Rock On at the Rock N' Roll Fantasy Camp in Las Vegas. "The rock 'n' roll life is the polar opposite of mine," says Park, a Wall Street banker, who hopped a flight to Las Vegas. Joined a rock 'n' roll band. And for four days screamed herself hoarse while perfecting — with the help of guitar hero Slash — a respectable rendition of Guns N' Roses' Paradise City, the climax of which found her leaping off a stack of amplifiers with Axl Rose-like gusto. The concept has been around for about 10 years, but has never been more popular than in the last few months. Cultural evidence points to rock as a salve. The Fantasy Camp plans to meet the needs of its expanding market by supplementing its $8,000 four-day sessions with $2,000 one-day camps. Sounds like Living Vicariously is catching on! Nickelback's hit Rockstar breaks it down simply: "We all just wanna be big rock stars/ And live in hilltop houses driving 15 cars."