Packers quarterback Aaron Rodgers became a "Jeopardy!" champion today on a special celebrity episode.

He won the game and claimed $50,000 for Midwest Athletes Against Childhood Cancer (the MACC Fund).

Astronaut Mark E. Kelly came in second and won $10,000 for the Memorial Hermann Foundation (Houston), while "Shark Tank" entrepreneur Kevin O’Leary finished third, winning $10,000 for Brigham and Women’s Hospital’s Martin P. Solomon Medical Education Scholars Program (Boston).