It was a double birthday to remember for the EXO-K family to remember.
The band celebrated members Kai and D.O.'s birthdays on January 11, and IdolWow! has all the details.
"They decided to do a joint do, because Kai's 19th birthday is on January 14 and D.O.'s 20th is on January 12," an SM Entertainment insider says. "The party was at the SM building [in Gangnam, Seoul] on Friday night."
Aside from celebrating with each other, Suho, D.O., Baekhyun, Chanyeol, Seuhun and Kai also invited their team of staff and select fans to the private do.
A partygoer reveals: "Everyone dressed up for the occasion. Chaneyeol was in the best mood at the start of the party. Before the others were even in hyper moods, he was already spraying snow in a can around the room and sucking the helium out of balloons and giggling. When he had the canned snow out, Kai grabbed it and sprayed it in his direction.
"There was cake, of course. They were saying they wanted to throw it at D.O. and Kai, but luckily it didn't happen.
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"Suho was telling the type of jokes an embarrassing father would say. The other members groaned and one of them, I think Chaneyeol, asked a staffer to 'remove' Suho from the room."
And it wouldn't have been a birthday party without a speech. A second source says Baekhyun, 20, spoke fondly about the boys.
"He held D.O.'s hand when he spoke about him and said how much he respected him and wanted to be a great singer like him," says the source. "They hugged afterwards. It was a tender moment.
"Kai thanked everyone for support and love on his birthday, and also joked about wanting to watch movies with a Restricted [R-rated] rating now that he is old enough."
At around 11pm it was time to call it a night. Stuffed with cake, the boys hugged and high-fived fans before being driven back their dormitory.
"Everyone had a great time," adds the source. "They made everyone there feel involved and part of the EXO family."