Oh, to be a rock star: mansions, wads of cash in the junk drawer, Cribs cameras in your ’fridge. It’s life in the fast lane and leather pants for everyone. Sure, your children have stupid names and your new record kinda sucks, but don’t the world tours and guitar cases fulla coke make up for it all? Even if you’re only good for one hit, you can at least be happy you got your 15 minutes. Unless you’re an insecure, aging drummer who’s more inclined toward funk than pop and your secret nightmare is that Dave Grohl will one day call you a wuss. Then perhaps you aren’t cut out for stardom. Ask someone who knows only too well when Semisonic’s Jacob Slichter reads from So You Wanna Be a Rock & Roll Star: Dispatches From the Belly of the Beast at 7 p.m. at Olsson’s Books & Records, 2111 Wilson Blvd., Arlington. Free. (703) 525-4227. (Cindy Fisher)