Songfacts®:

• This song was recorded by Meghan Trainor for The Peanuts Movie, a 3D makeover of Charles M. Schulz's much-loved characters released to commemorate the 50th anniversary of the iconic Charlie Brown Christmas television special. "I was so nervous," the 'All About That Bass' star told Entertainment Weekly. "I wanted to make sure I got it exactly what they wanted."
• The song was written by Trainor at the request of director Steve Martino. "They wanted a song about confidence and knew I was good at writing those," she told People. "I feel better when I'm onstage dancing and having fun, so I wrote about that!"
• Trainor admitted that she hadn't seen any of the Peanuts movie specials before she was asked to write this song. In her People interview, she apparently thought it was a cartoon, not a comic strip. "My grandma always had it on; she always had a lot of cartoons on," she said.
  
  This is understandable, since the TV specials were created in the '60s and '70s, and Trainor was born in 1993. The last original Peanuts comic strips ran in 2000.