Fifth Harmony have appeared in a ground-breaking music video for DC Super Hero Girls.

Their new single, 'That's My Girl', features heavily in the video alongside teenage versions of Batgirl, Harley Quinn, Poison Ivy, Wonder Woman and Supergirl.

Lauren Jauregui told ET recently:

“It's about girl power and that's exactly what this song is about.

"Girl power is so special to be teaching young girls, and we’re honored to be a part of [it] because it’s something that I feel like [is] lacking [right now].”

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Watch the DC Super Hero Girls video below: