Video: Rihanna Gets Loud on 'Letterman'

Oh-na-na. There was no mistaking the red-haired pop star dressed in a polka-dotted Dolce & Gabbana outfit on “The Late Show with David Letterman.” Rihanna shared the bill with her mentor Jay-Z on Tuesday’s show, performing her No. 1 single “What’s My Name?” from her newly released album Loud.

Despite dropping her fifth album today, RiRi is not worried about first-week sales. “Never have I ever stressed out on the first week,” she told Angie Martinez. “Ever since Good Girl Gone Bad, the first week was like 160[,000], and it grew to sell nine million albums. The first week never determines what the success of the album will be.”