Fifth Harmony's Camila Cabello has become super good friends with Taylor Swift.

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Earlier this month, Swift threw Cabello an 18th birthday party, which was princess themed.

Over the weekend the girls met up at the iHeartRADIO Music Awards. They call themselves the "Squad," along with a few other celebrity friends including Justin Timberlake.

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Anyway, Swift and Cabello continued to hang out in the Los Angeles area on Monday night when they grabbed dinner together at Katsuya according to Splash News.

Late Monday night, Swift shared a video on her Instagram of her and Cabello in a car when Cabello's group's latest single "Worth It" came on 102.7 KIIS FM.

When 'Worth It' comes on the radio and you're with @camila_cabello and all chill is lost. A video posted by Taylor Swift (@taylorswift) on Mar 30, 2015 at 9:27pm PDT

"[A]ll chill is lost," Swift revealed in the caption.

In the video, Swift asks Cabello, "Whose song is this?" as Kid Ink's rap is blaring in the background.

"Some weird girl group Fifth Harmony," Cabello replied.

"Is it your song?" Swift then asks.

"It's our song!" Cabello shouts back.

The two are pretty silly together.

"WE'RE SO DORKY I LOVE IT," Cabello tweeted about the video Swift shared of their adorable reaction to hearing "Worth It" on the radio.

On her Instagram, she reposted the video and told Swift, "[I] love u," aside from stating, "SQUAD GOES WILD."

Tags: fifth harmony Taylor Swift Music