Celine Dion performs with Dan Bigras on the Plains of Abraham Friday Aug. 22, 2008 in Quebec City. Dion didn't bake a cake but she wished the provincial capital a happy 400th birthday Friday night as she took the stage for a packed concert on the historic Plains of Abraham. The free show is part of year-long birthday celebrations being held to mark the 400th anniversary of the provincial capital. THE CANADIAN PRESS/Jacques Boissinot