Katy Perry and Cheryl Cole are among the stars who will join Rihanna on her new fashion show Styled to Rock.
The popstars appear on a lengthy guestlist for the Sky Living show which will debut later this month.
Styled to Rock will see designer hopefuls given the task of creating a new stage outfit for a different celebrity each week.
The Saturdays, Scissor Sisters, Katy B, Tinchy Stryder, Pixie Lott, Little Boots and Little Mix have also signed up for the show, reports The Mirror.
Fashion designer Henry Holland, Girls Aloud singer Nicola Roberts and Rihanna's own stylist Lysa Cooper will be mentors on the show.
Styled to Rock will premiere on August 14 on Sky Living.