What's Happening This Weekend What's Happening This Weekend It's no joke: Spring brings fun both in the usual and surprising ways. The annual Cherry Blossom Festival in Washington, D.C., is under way, the NCAA Final Four happens this weekend and the Sony Ericsson Open comes to a close in Miami. But there is also a very controversial hip-hop troupe of teens performing in Ponoma, Calif., bake sales happening across the country to aid Japan, a Mormon musical and a St. Stupid parade in San Francisco. What's Happening This Weekend Clearly the only way to combat bad news is with sweet treats. To help raise money for the victims of Japan’s recent earthquake and tsunami, Bakesale for Japan will be held Saturday at locations across the country, with proceeds going to Peace Winds Japan. What's Happening This Weekend: Adrift in America at the Museum of Moving Image This year’s buzziest museum reopening in New York was the Museum of the Moving Image, which received a dazzling