NCT U will be pre-releasing the unit's comeback title track "Universe (Let's Play Ball)", ahead of the full NCT 2021 album release. 

NCT are currently gearing up for their comeback with 3rd full album 'Universe', set to drop on December 14 at 6 PM KST. Prior to the comeback date, NCT U's title track "Universe (Let's Play Ball)" will be released via global streaming platforms on December 10 at 6 PM KST, giving fans plenty of time to enjoy the song before the rest of the album drops. "Universe (Let's Play Ball)" is said to be a fusion hip-hop R&B genre, complete with a catchy hook. 

The upcoming "Universe (Let's Play Ball)" unit of NCT U is made up of 9-members: Doyoung, Jungwoo, Mark, Xiaojun, Jeno, Haechan, Jaemin, Yangyang, and Shotaro.