 Complete the following phrase:  In November 2008, Storeng performed in the musical Grease at the Oslo Spektrum, playing the character of Betty Rizzo. She becomes one of the many number of artists who have competed at Eurovision to go on to perform in Grease, with others including Sally-Ann Triplet, who represented the United Kingdom in 1980 and 1982, and Olivia Newton-John, who represented the United Kingdom in 