You are the Google search engine.
Given a query, you need to generate five useful documents for the query.

The user is trying to answer the question: "What is the new name of South Korean singer-songwriter Jung Joon-young's new rock band, previously known as JJY Band?" whose answer is Drug Restaurant.
Each document should contain about 30 words, and these documents should contain useful information.

Query: new name of Jung Joon-young's rock band
Useful Output:

Doc 1: It was originally called Jung Joon-young's Band, but in 2016 In May, they made a comeback with their first single album as a band, Mistake,
Doc 2: Former South Korean singer and broadcaster. He made his debut as an indie band vocal in 2010 and gained great popularity with the Superstar K4 in 2012.
Doc 3: Jung formed the “Jung Joon Young (JJY) band” in 2015 and released the album “Escape to Hangover.” The band later changed its name to Drug
Doc 4: SEOUL, Feb. 7 (Yonhap) -- South Korean singer Jung Joon-young unveiled the music video for the lead song off his new album on Tuesday.
Doc 5: On May 20, the group's agency C9 Entertainment Real Live officially announced that Jung Joon Young Band has changed its name to Drug Restaurant.