CD. Unlike a lot of karaoke discs Sybersound s Party Tyme Karaoke series gives karaoke enthusiasts the benefit of being able to choose between instrumental and vocal versions. Their releases typically begin with the instrumental versions and then repeat the program with the vocal versions of the same songs. The renditions of the songs are functional but hardly substitute for the originals. Party Tyme Karaoke: Girl Pop Vol. 6 includes instrumental and vocal versions of Kelly Clarkson s Since U Been Gone Alicia Keys If I Ain t Got You Avril Lavigne s My Happy Ending Jennifer Lopez s Get Right JoJo s Leave (Get Out) and Ashlee Simpson s Pieces of Me. ~ Andy Kellman Rovi