Shawn Johnson to guest star on 'Teenager'

Gold medalist to play herself

Gymnast and Olympic gold medalist Shawn Johnson will guest-star as herself on Tuesday's episode of ABC Family's "The Secret Life of the American Teenager." This week's episode of "Teenager" averaged 2.4 million viewers in the 12-34 demo, including 1.9 million females. That made it TV's No. 1 program at 8-9 p.m. Tuesday in the demos opposite such competition as CW's "90210" series premiere.