On February 9, Jo Kwon posted a video titled '2AM National Tour Concert Behind the Scenes (feat. Adam couple)' on his YouTube channel 'KEEP GOING'.
The 2AM members, Jo Kwon, Jeong Jinwoon, Lee Chang Min, and Lim Seul Ong, warmly welcomed Gain as she stopped by their waiting room before their concert.
Jo Kwon and Gain wrapped their arms around each other immediately as they saw each other.
"Noona, you look so cool!", "You've got the vibe!", the members showered Gain with compliments.

"Did you guys just get the logos and put them on those t-shirts?", Gain asked playfully.
"She sounds like a stylist who has been with us for like thirty years.", Jo Kwon quipped, leaving everyone around in stitches.

"For the next picture, let's go with this concept; we look so happy together that these guys are envious of us.", Gain told Jo Kwon, putting her hand with his to make a heart pose together.
Gain and Jo Kwon also took photos of just them hugging each other tightly; "It's the 'Adam couple'!", other members exclaimed at the two.

Jo Kwon warmly wrapped his arms around Gain, and she leaned closer into his arms.
Seeing them being so affectionate with each other, the members playfully inquired, "What is this? 'We got remarried'?"
In 2009, Jo Kwon and Gain teamed up as a 'married couple' in MBC's television show 'We Got Married', where male and female celebrities paired up and pretended to be married.
The two were one of the most beloved couples on the show, lovingly dubbed the 'Adam couple'.
'Adam couple' gained renewed attention as Jo Kwon recently shared cute photos of himself and Gain on his Instagram, leaving fans hopeful for their on-air reunion.

(Credit= 'kwon_jo' Instagram, '무조권(KEEP GOING)' YouTube, MBC We Got Married)
(SBS Star)