Listen to Grass Ain't Greener online. Grass Ain't Greener is an English language song and is sung by Chris Brown. Grass Ain't Greener, from the album Heartbreak On A Full Moon Deluxe Edition: Cuffing Season - 12 Days Of Christmas, was released in the year 2017. The duration of the song is 3:21. Download English songs online from JioSaavn.