U.S. music site, Billboard released an article that spotlighted Psy's "Gentleman" music video partner, Gain.

Yesterday, they released an article titled, 'Meet Ga In: Psy's 'Gentleman' Music Video Co-Star'. They talked about her history as a member of the girl group, Brown Eyed Girls as well as her solo career.

They stated that the Brown Eyed Girls were a "group that showed unique color. They are making their own style of music that is different from others. Gain was also chosen as the last member for the group through an audition program."

They continued, "Gain reveals a sexy image in the music video, which is actually something that they could not find in their image from 2006. They were a popular R&B ballad group that first debuted without showing their faces."

In 2010, Gain released her first solo album and also played a fake couple with 2AM member Jo Kwon on MBC "We Got Married."

She also featured in JYP's song as well and gained much attention.

Last year, she released her new solo album and gained much attention for her song, "Bloom."

Lastly, Billboard stated, "Last year, 4minute member HyunA performed with Psy for 'Gangnam Style' and was able to reach over 300 million views on her own solo music video through his popularity. Just as HyunA did, Gain will most likely receive much attention through this as well."

They felt that it was right to have her in the video as the dance moves were from Brown Eyed Girls' song, "Abracadabra."