GameFAQs: FAQs, cheats, and a message board.
GameSpot: Reviews, news, previews, images, videos, cheats, links, and a forum.
GameSpy: Karaoke Revolution Party: Provides a review, screenshots, and a movie.
IGN: Karaoke Revolution Party: Review, previews, news, screenshots, and videos.
Netjak: Review, by Steve Lubitz: "In all, if you’ve gotten burned out on Karaoke Revolution games by the previous sequels, Karaoke Revolution Party will bring you back." [Score: 8.5 out of 10]
Team Xbox: Review, preview, news, and screenshots.