Rihanna makes guest appearance at Jay-Z concert
Jay-Z and Rihanna have worked together in the past. But when Rihanna walked onto the stage at UCLA'S Pauley Pavilion Sunday it was a surprise.
She walked on stage with black and silver leggings, reported Access Hollywood, greeting her former mentor with a hug.
But for Rihanna it was more than the opportunity for a guest appearnace. The pop star gave her first performance of her single "Hard," from the album "Rated R," to be released November 23.
