Listen to I Am Strong (Karaoke Version) [Originally Performed By the Grascals] online. I Am Strong (Karaoke Version) [Originally Performed By the Grascals] is an English language song and is sung by Mark and Charlie. I Am Strong (Karaoke Version) [Originally Performed By the Grascals], from the album Karaoke Collection, Vol. 32, was released in the year 2017. The duration of the song is 2:58. Download English songs online from JioSaavn.