Celebrities, including Ashlee Simpson, Kendall Jenner, and John Travolta, flub their lines and lyrics on live TV
Ah, live television! There's nothing like it. Celebrities have just as much pressure when the cameras start rolling, and sometimes that turns into an on-air disaster! From Ashlee Simpson lip-syncing on Saturday Night Live to Kendall Jenner's teleprompter mix-up at the 2014 Billboard Music Awards, here are the biggest celebrity flubs!