"One More Time (Otra Vez)" featured the vocals of the seven active Super Junior members — Leeteuk, Yesung, Donghae, Shindong, Eunhyuk, Siwon, and Ryeowook.
[3] On October 1, 2018, SM Entertainment announced that Super Junior would release a single called "One More Time (Otra Vez)" featuring Mexican pop rock band, Reik.
This marked only the second time Super Junior had collaborated with a foreign artist, having done so previously with Leslie Grace for "Lo Siento", months prior.
Reik's leader, Jesús Alberto Navarro Rosas said "It's very exciting to mix Korean and Latin music because they're having such a huge moment globally, and it's great that this collaboration happened.
[7] The music video featured both groups performing the song in MGM Macau, with Reik's instrumental backing complementing Super Junior's choreography.