Singer and songwriter Sheryl Crow began dating the Tour de France legend but now disgraced cyclist Lance Armstrong in 2003. They were engaged by September 2005, but Armstrong broke up with Sheryl two weeks before she was diagnosed with breast cancer. Ironic, since he had battled testicular cancer himself. He cited her biological clock as the deciding factor. Nine years younger than Sheryl, who was ready to settle down and start a family, Lance was recently divorced with three children, and claimed it wasn’t what he wanted at that time. Since then, Sheryl has gone on to adopt two sons while he has had two more children with his current girlfriend.