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Watch Echosmith Play ‘Cool Kids’ On American Idol

Gav Lloyd
Gav Lloyd 16 May 2015 at 17.06

It's STILL ridiculously catchy.

Echosmith recently took to the stage of American Idol to play 'Cool Kids' with finalist Joey Cook.

Check out their performance from the show's final below.

You can catch Echosmith at this year's Reading & Leeds Festival.

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