Lotte, one of South Korea's largest conglomerates recently updated their website stating that Cube Entertainment's 4minute and BEAST will be performing together at the opening of one of their department stores. The store that's opening is in Gwangbok-dong Busan and will take place on December 15th from 6PM - 8PM. It's cool that they will be performing together, hopefully they'll have more interactions with each other on the stage. Thanks to mm for the tip. Remember to visit the 4-minute and B2st Rising Forums.