Promise - Ringtone by Romeo Santos featuring Usher

Released as the second single "Promise" is a Latin pop song by American recording artist Romeo Santos that features guest vocals by American singer-songwriter Usher. It is from Santos' debut album 'Formula,' Vol. 1 (2011) and was released as the album's in Latin America and the United States September 2011. "Promise" musically combines elements of bachata and R&B. The song charted on the US BIllboard Hot 100 and currently at number 91.