Listen to Must Be Doin' Somethin' Right (Karaoke Version) [originally Performed By Billy Currington] online. Must Be Doin' Somethin' Right (Karaoke Version) [originally Performed By Billy Currington] is an English language song and is sung by Luis and Rita Thyagarajan. Must Be Doin' Somethin' Right (Karaoke Version) [originally Performed By Billy Currington], from the album Party Smasher Karaoke, Vol. 19, was released in the year 2017. The duration of the song is 4:10. Download English songs online from JioSaavn.