In addition to starring in the reality series "Roommate," Je Seho and Nana are collaborating once again in the latest music video for Orange Caramel.

On August 17, Orange Caramel unveiled their latest single titled "My Copycat," and one of the missions for fans is to find Seho in the "Where's Waldo?" themed music video.

"Seho made a surprise appearance in the music video," said the official YouTube description. "Where is he?"

"If you succeed despite the high level of difficulty, mission complete! If you completed the mission, please send your answers to pledisfanclub@daum.net! We will give away Orange Caramel's autographed CD and the Skecher's sneakers that the members are wearing in the music video."

Although it is to viewers' advantage not to reveal the answers to all of the missions for "My Copycat," most fans have already found the variety of Easter Eggs, including the location of Seho through the music video.

"I liked this song better than 'Catallena,'" commented Ymz Allen on YouTube. "Great comeback from the girls. Gun and catchy as always!"

In addition to starring in "Roommate" alongside Seho, Nana will also be taking part in a Chinese fashion survival show called "Muse Dress."

Reportedly, "Muse Dress" will challenge six celebrities and six designers to pair up into teams and compete in missions. Nana is the only Korean celebrity taking part in the series.

"Nana, who who possesses a polished and urban image, has potential to be a star who will lead the Hallyu wave in fashion in China," said a rep for "Muse Dress" according to allkpop.

On August 15, "Roommate" cast member Park Minwoo was also spotted at the YG Family concert in Seoul, which raised people's hopes that the 2NE1 might be return to the series since taking an "indefinite hiatus" from the show.

Check out Orange Caramel's "My Copycat" below: