BAECHIGI - SHUT UPbr The hip-hop duo BAECHIGI, who arrived at the music scene in 2005,has returned after a long break with the mini-album, "Best of Best.”"SHUT UP” is a BAECHIGI-styled hip-hop song with a heart-touching melody.The song speaks a message of getting rid of lingering feelings as relationships sometimes don’t work out no matter how hard you try.