After Team Sing-Along Mission, only 15 contestants survived. The contestants move on to the sixth mission, Original Song Collaboration. They are to make a collaborative performance with the original singers in front of a live audience. In the Duet Round, a contestant who places last will be eliminated right away, and only the top four will advance to the semifinals. In the Trio Round, two contestants sing with the original singer, and only the winning team will advance to the semifinals.
