The upcoming '2012 SBS Gayo Daejun' is keeping fans on their toes after announcing that some of South Korea's best idol groups will be forming teams with each other to compete at the year-end festival.

Ahead of the competition, music site Soribada revealed a twenty-minute-long video of the music and dance creation process featuring the four groups - Dynamic Black, Dramatic Blue, Dazzling Red, and Mystic White.

Meanwhile, it has also been announced that all proceeds from the sales will be donated to charity.

Check out the full video below! Which team will you be rooting for?