Peanut butter covers the rock Wednesday afternoon. The rock, located on Washtenaw Avenue, is traditionally covered in paint by students and groups on campus. Mira Levitan (JONATHAN NEFF/ Daily) Related articlesAn interview with Mac Saturn, the past, present and future of rock ‘n’ roll musicWhat happened to rock stars?Don’t pick up Bretman Rock’s new memoir, ‘You’re That Bitch’