McKayla Maroney, famous for competing with the US Women's Gymnastics Team in 2012 and her sideways smirk that turned her into a meme, has officially retired from the sport that made her famous. After dealing with a host of health issues and getting multiple surgeries, McKayla, like many young gymnasts, was forced to give up the sport before she even hit the drinking age. Now she is pursuing something just as volatile—pop music.