"Although I've stated several times that not much is different in Karaoke Revolution Presents American Idol 2, that's not entirely true. See, when the game came out before on PlayStation 3, Xbox 360, Wii, and PlayStation 2, all of those versions were the same disappointing experience except for the PS2 entry, which let you put your face on a character and had a bunch of other nifty doodads. Rather than take these cool PS2 features to the other consoles for this sequel, Konami and Blitz made the only major change to this iteration of the title and dropped the PS2 SKU altogether.
Seriously, if you already have the original version of this game, there's no reason to pick this one up unless you're in love with the set list or aching for new DLC. If you didn't pick up the first game, I still wouldn't recommend getting this one. It works fine, but these are just lame covers of the songs you know and the American Idol name doesn't add any value to this game. Plus, you could just buy the original game used and invest the money you've saved into downloadable songs that you actually want instead of the 40 tracks this game sticks you with."