New song, Usher ft Romeo santos with: Promise! + Lyrics. Promise is a Latin pop song by Romeo Santos featuring Usher, from Santos' debut album Formula, Vol. 1 (2011). The track was co-written and produced by Rico Love. Music video by Romeo Santos Feat. Usher performing Promise. (C) 2011 Sony Music Entertainment US Latin LLC. Listen to music by Romeo Santos on Pandora. Discover new music you'll love, listen to free personalized radio.