Listen to Rudeboy (Vocal Karaoke Version) [Originally Performed By Sigma & Doctor] online. Rudeboy (Vocal Karaoke Version) [Originally Performed By Sigma & Doctor] is an English language song and is sung by Freshhead Karaoke. Rudeboy (Vocal Karaoke Version) [Originally Performed By Sigma & Doctor], from the album Rudeboy (Karaoke Version) [Originally Performed By Sigma & Doctor], was released in the year 2013. The duration of the song is 3:34. Download English songs online from JioSaavn.