R+B star Chris Brown is working through pain on the set of new movie THIS CHRISTMAS after breaking his ankle on the basketball court. The singer is hobbling around after injuring his foot in a "knucklehead" game, but still insists on performing at the Grammy Awards later this month (11FEB07). He tells MTV News, "The doctor told me I need to go and get a cast and I was like, 'I'm doing the Grammys...' So, when y'all see me on the Grammys you'll know it's gonna be with a fractured ankle. "If the right side is a little bit (more) swollen than the other side, you'll know why. I'm gonna still get through it. I've gotta do it for my fans."