Listen to I Heard It Through the Grapevine (Karaoke with Background Vocals) [In the Style of Gladys Knight] online. I Heard It Through the Grapevine (Karaoke with Background Vocals) [In the Style of Gladys Knight] is an English language song and is sung by ProSound Karaoke Band. I Heard It Through the Grapevine (Karaoke with Background Vocals) [In the Style of Gladys Knight], from the album Get Lucky: 2014 Spring Break Karaoke with Blurred Lines, Wrecking Ball, Roar, Suit and Tie & More!, was released in the year 2014. The duration of the song is 3:05. Download English songs online from JioSaavn.