"Everything Is Awesome" is the theme song to the 2014 Warner Bros. Pictures film The Lego Movie. It was written by Shawn Patterson,Jo Li, and The Lonely Island. The single and pop version featured in the end credits of the movie was produced by Mark Mothersbaugh and performed by Tegan and Sara in collaboration with The Lonely Island.

The version of "Everything Is Awesome" featured in The Lego Movie scene, official trailer, TV spots, video game, and featurette was produced by Bartholomew and performed by Bartholomew and Lisa Harriton under the name Jo Li.

A third version appears in The Lego Batman Movie, performed by Richard Cheese & Lounge Against The Machine.

On January 26, 2014, the song received its first US radio airplay via Anything Anything with Rich Russo on WXPK-FM, WRAT-FM and WDHA-FM.

Sara Quin of Tegan and Sara said in a Billboard interview:

We want to be a "serious" musical band, while also being humorous people, but this was so adorable, and the movie looked great, and the opportunity to do something with Mark Mothersbaugh and the Lonely Island ... it was sort of a no-brainer, and it's turned out to be this really cool moment. We feel like it was a win-win.

In an interview to Fox News, Mark Mothersbaugh says the song "was supposed to be like mind control early in the film. It's totally irritating, this kind of mindless mantra to get people up and working."

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