Stardance (Stardance #1)

Shara Drummond was a gifted dancer and a brilliant choreographer, but could not pursue her dream of dancing on the Earth, so she went to space, creating a new art form in three dimensions. Then the aliens arrived, and there was only one way to prove that the human race deserved not just to survive, but to reach the stars. The only hope was Shara, with her stardance.