On January 27th, girl group Jewelry made their return to the industry with two new members and a fun swing track titled, "Back It Up." Their impressive performance style lived up to the group's 10-year name, and the members revealed themselves to be more determined than ever to start a fresh page in the history of Jewelry. In support of the attention they've been receiving lately, Sports Korea released exclusive 'selca' shots taken by the girls from the backstage of their comeback. -- # "Younger, shorter, taller?" Jewelry underwent a refreshing change with the addition of Kim Ye Won and Park Semi. The group stands before the camera in celebration of their comeback and revealed that their average age dropped to 22 years old.  Staff members added that their average height was raised while their average weight was lowered. # "We are the new Jewelry!" Kim Ye Won and Park Semi are bursting with energy in the waiting room! Their determination to carry on Jewelry's name can be heard ringing throughout. -- # "Visuals and even aegyo!" The members took unique selca shots accentuating their different charms.  Kim Eun Jung shows off her long, slender body and 21-inch waist,while Kim Ye Won and Park Semi show off their cute chubby cheeks and a 'sunshine' smile. -- # "Synchronized and dripping with aegyo!" With Kim Eun Jung in center, the girls continue their selca play.  Kim Ye Won puffs up her cheeks while Park Semi waves. -- # "Is there something missing?" The members regroup after completing their pre-recording rehearsal and concentrate on the footage.  For this moment, they're quiet and serious. [gallery link="file"] Source: Sports Korea via Nate