Listen to I Hate This Part (Instrumental Session) [Originally Performed by The Pussycat Dolls) online. I Hate This Part (Instrumental Session) [Originally Performed by The Pussycat Dolls) is an English language song and is sung by Pop Stars United. I Hate This Part (Instrumental Session) [Originally Performed by The Pussycat Dolls), from the album Pure Hits - Vocal & Instrumental Sessions, was released in the year 2008. The duration of the song is 3:45. Download English songs online from JioSaavn.