At an August concert in Bucharest on her "Sticky & Sweet" tour, Madonna called for an end to widespread discrimination against Eastern Europe's Gypsies - and her stance provoked boos from thousands of fans in Romania. Now 'Reality Bites' star Ethan Hawke, visiting Romania to help promote his mother's charity supporting education for Gypsy children, placed the pop superstar alongside Bob Marley and John Lennon as part of a tradition of artists speaking out against racism.