Prom dates commonly plan for their attires to match when they arrive at the big event.

But Hauppauge High School senior Matthew Cullen, 18 and his girlfriend, Abigail Lang, 19, decided to add an extra twist to this tradition Wednesday when they arrived at Cullen's senior prom at East Wind in Wading River.

His tux matched not just her dress, but her hair, too.

Lang sported cotton candy-colored locks pulled back, while Cullen wore a black tuxedo to match her dress and a pink bow tie and vest to go with her hair.

"Since I was wearing a black dress, we wanted an accent color," said Lang. I dye my hair different colors...I wanted to try pink hair for a while."

The couple, who received many compliments for their look, celebrated two years together in March after meeting in late 2014 on YouTube through a mutual friend.

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The two quickly became an item despite the fact that he lives on Long Island and she in Simsbury, Connecticut.

Despite the distance, the two made an effort to see one another, with both attending Lang's junior and senior proms and making trips to each other's homes when they could. Cullen also began driving up to see Lang after she started college as a freshman at SUNY Purchase in the fall of 2016.

They even have a weekly podcast they produce in which they provide educational lessons on how to speak in foreign languages.

"He's really caring and listens to my problems and helps me through them," Lang said.

Cullen praised her "creative personality" and "artistic" outlook as his favorite aspects about her.

And while the two intentionally chose for Cullen to wear pink to match Lang's hair, they did not expect their choice to make them stand out.

"I don't think we thought about it, but I guess," Lang said. "We haven't seen anyone's date match their hair."

Cullen, who aspires to be a writer, will join Lang this fall as a freshman at Purchase, studying creative writing and linguistics. Lang, a double major in film and French, says the closer proximity will allow them to spend more time together, but also help with life outside of their relationship.

"I feel like I'm going to be more independent in our relationship," she said, "because when you're apart, it's harder to do things after classes because you only have so much time together. But when he's there, I'll be able to easily go out to class, hang out with friends and hang out with him in one day."