When we sat down with Syleena Johnson for an interview recently backstage prior to a performance in NYC, she gave us a treat by singing an acapella version of her current single “Harmony” for us. The song is originally a duet with Dave Hollister, but Syleena launched the “Harmony Challenge” to find a male singer to sing the song with her on stage during each stop of her upcoming “Couples Therapy” tour. Listen to Syleena’s powerful and beautiful voice singing the song acepella, and also be sure to head over to her official Instagram account for all details on the contest.