To celebrate Jewelry's successful comeback, fans held a surprise mini-party for their beloved idols! After performing on February 10th's "M! Countdown", the members were ushered into what appears to be a rehearsal room, where they were surprised by a sweet cake and even sweeter fans. During the surprise party, Jewelry held a mini fan meeting for their fans, doing everything from taking photos with them to having an impromptu autograph session. Suggesting the autograph session themselves, the Jewelry members felt that it was the least they could do to demonstrate their gratitude and love. Jewelry is currently gaining lots of popularity by promoting their title song, "Back It Up". Source: Sports Chosun via Nate