Because nothing says rock 'n' roll like a group of grandfatherly types in suits, Michael Bloomberg, Clive Davis and Billy Joel gathered yesterday to announce the opening of New York's branch of the Rock and Roll Hall of Fame and Museum. Opening in November on Mercer Street, the 25,000-square-foot space will contain memorabilia like Bruce Springsteen's first car, Elvis Presley's motorcycle jacket, and some stuff Joel "found around his house." [NYSun]