KBS' '2015 Song Festival' (also known as the KBS 'Gayo Festival') is going to be one amazing end of the year show. Because of all of their collaboration stages, that's why!

The revealed collaboration stages include a performance by Red Velvet's Irene and Seulgi with G-Friend's Yuju and Yerin. 

The boys Noel's Kang Kyun Sung, SHINee's Key and INFINITE's Woohyun will also have a stage together too. 

And another group of women is planned to have a collaboration stage, EXID's Solji, AOA's ChoA and MAMAMOO's Solar.

Not only that, but BTS and Zion.T are also said to hold a very special stage.

More specifically, one BTS member and Zion.T will perform together, but we don't know which member yet. KBS says that we'll only find out once their performance begins that night.

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The event takes place December 30 at 7:50pm KST.