Martina McBride, Enya, Christina Aguilera and Sarah Mclachlan will join Bette Midler and Lionel Richie to launch Christmas time in New York this year (06). The stars will perform at the annual Christmas tree lighting ceremony at New York City's Rockefeller Center on 29 November (06). American Idol winner TAYLOR HICKS, Sting and John Legend will also sing festive tunes beneath the tree.