Question: What is the new name of South Korean singer-songwriter Jung Joon-young's new rock band, previously known as JJY Band?
Sentence (from "2 Days &amp; 1 Night"): "1 Night 2 Days" is one of the two segments (the other segment is "The Return of Superman") on "Happy Sunday", airing at 6:25pm KST once a week.
Relevant evidence: No