MBC's 'Music Core' has a lot of special treats ready for viewers in celebration of their 400th episode on March 8 KST!

They will be showing the debut stage of project boy group, Boy's Day, which will be performing "Something" with Girl's Day on the program.  The prettiest boys from groups that are currently promoting were chosen: BTOB's Minhyuk, NU'EST's Ren, VIXX's Hongbin, and A-JAX's Seungjin!  The four will go through hair, make up, and wardrobe to perfectly resemble Girl's Day.

You can see the boys practicing on MBC's 'Section TV' in the video below.

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However that is not all!  This episode will have Girls' Generation's comeback stage and a performance by EXO.  Perhaps they will have a collaboration stage or EXO will perform as Girls' Generation's male back up dancers?  There will also be a performance by both After School and Kahi uniting for the first time in a while! Other artists who will be performing on the 400th episode are TVXQ, SISTAR, miss A, SECRET, B1A4, T-ara, Ga In, Sunmi, Koyote, Ailee, Tae Jin Ah and more.  

SISTAR will be performing miss A's "Hush" while miss A will be performing SISTAR's "Alone." In addition, Ga In will be performing Sunmi's "24 Hours" and Sunmi will be performing Ga In's "Bloom"!

The first episode of 'Music Core' aired back on October 29, 2005.