HYBE boybands Tomorrow X Together (TXT) and ENHYPEN have released their new behind-the-scenes documentary.Todau (February 15), the agency – which owns Big Hit Music and Belift Lab, which TXT and ENHYPEN are signed to, respectively – released ‘BACKSTAGE: TXT x EN-‘, which documents the boybands’ preparation for their joint performance at last December’s 2021 KBS Song Festival.The documentary features never-before-seen backstage footage of the two boybands interacting with one another while rehearsing for their joint performance, alongside interviews with the individual members about their thoughts on the collaboration.“There’s 12 of us, right? 12 members in total. I’ve never performed with so many people before,” says TXT’s Yeonjun during the documentary.