Tiffany has also recorded new English lines to be included on the track.
Jessica and Tiffany have both released solo albums this month.
Due to the strict "Produce 101" contracts, she was unable to promote heavily in the past.
JYP's previous comeback was over a year ago, with "Who's Your Mama?"
Hyosung is returning as a soloist over 10 months after she released her last album.
The group will perform over a 10-day period in July.
According to insiders, the title track has already been selected.
First JYP, now SM has collaborated with FNC Entertainment.
The singer is expected to compete with a slew soloists from her former group, including Taeyeon, Tiffany, and Yuri.
The date was announced at the end of the most recent episode of K-pop Star.
Jessica's agency responded to the intial rumors that said Jessica is working on an album and preparing a comeback.
The SHINee member's first full-length album will contain 10 tracks.
The singer has taken a large role in the production of the new album scheduled for release next month.