The boys of MBLAQ have finally returned back into the music scene with their recently released 4th mini-album titled '100% Ver.', and have even claimed over 40,000 pre-orders, and counting, to date! With One Way's Chance taking part in the album's production, there's no doubt that the boys will continue to reign with much success. On the December 12th episode of 'M! Countdown', MBLAQ completely surprised fans by putting on a powerful performance of their title track "This is War", once again showcasing their impeccable vocals and choreography. Without further ado, check out MBLAQ's comeback stage below! -