Pushing forth with quite the hectic schedule, Rihanna paid a visit to the "Late Show with David Letterman" at Ed Sullivan Theater on Tuesday afternoon (November 16). The "Late Show" appearance comes as the Barbadian beauty is currently in full promotional mode as her new album "Loud" was just released today. As for the album's early reviews, August Brown of the Los Angeles Times commented, "Loud is, at points, a powerful reminder of Rihanna's skills before the 2009 Grammys incident changed how we read her songs. The minor-key moments are still her best: 'Only Girl (In the World)' revives the...