Here's the NCT U member lineup for NCT 2021's comeback title track

NCT 2021 Motivates Us For a Dreamy New Year with Third Album Universe — The Kraze

NCT 127 - Wikipedia

A tally of the members' participation on NCT U title tracks, SM Station and NCT Lab : r/NCT

Detailed NCT U Line-Ups List (Members Release Date and more!) (Updated!) - Kpop Profiles

fact check — NCT 2021 'Universe' Album Tracklist + Lineup ©

A tally of the members' participation on NCT U title tracks, SM Station and NCT Lab : r/NCT

NCT U are ready to bat in their 'Universe (Let's Play Ball)' MV teaser! ⋆ The latest kpop news and music

All 15 NCT 127 Albums in Order of Release – The K-Pop Hero

Are NCT 127, NCT U, and NCT the same band? - Quora

Detailed NCT U Line-Ups List (Members Release Date and more!) (Updated!) - Kpop Profiles

NCT updates on X: #NCT 2021 the 3rd full album 'Universe' track list #NCT127 will have 'Earthquake' #WAYV will have 'Miracle' #NCTDREAM will have 'Dreaming' And the remaining 10 songs will be #

NCT to Perform 'Universe (Let's Play Ball)' for the First Time at 2021 MAMA before Their Official Comeback

NCT Lab 2022: Mark's single 'Child' and other unit releases explored