Listen to Girlfriend (Originally Performed by Billie Piper) [Instrumental] online. Girlfriend (Originally Performed by Billie Piper) [Instrumental] is an English language song and is sung by Retro Spectres. Girlfriend (Originally Performed by Billie Piper) [Instrumental], from the album Girl Bands Galore - The Backing Track Series, was released in the year 2015. The duration of the song is 4:15. Download English songs online from JioSaavn.