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WATCH: Fifth Harmony Takes On Radio DJs In Epic Competition

JUST ADDED: 5 Seconds of Summer will be rocking the stage at this year's iHeartRadio Music Festival Village in Las Vegas! The band sat down with Ryan Seacrest to break the news.Click here to buy your tickets now, before they sell out!

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The ladies of Fifth Harmony and the guys of Los Angeles' KIIS FM engaged in a competition of epic proportions when the girls stopped by the radio station.

[RELATED: Superlatives with Fifth Harmony]

It all started when the girls challenged the KIIS FM guys to a sumo wrestling match - in heels - "just so [they] know how it feels," in the words of Camila.

KIIS FM's response? Challenge accepted!

The sumo wrestling match evolved into a series of competitions, girls vs. guys, in arm wrestling, checkers, a dance-off, and a sing-off.

Check it out below! Who do you think won?

 

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