The clown-faced rappers in the Detroit-based Insane Clown Posse will unleash an album of rarities, B-sides, outtakes, previously unreleased singles and remixes entitled Forgotten Freshness on Aug. 18. The 22-track, two-CD collection of horror-themed rap songs will feature such unheard gems as "Hey Vato," "Fat Sweaty Betty," "I Didn't Mean to Kill Him," "Mr. Rotten Treats," "Mental Warp," "Dead Pumpkins," "Southwest Strangla" and "Santa's a Fat Bitch."