U-Sing is a karaoke game, similar to the Singstar series. It contains 30 songs through a licensing deal with Universal Music, also featuring the original video clips. The game is sold as a bundle version with a microphone or as software only. It contains six game modes: U-Sing right to learn to place your voice just right during the song.
The gameplay involves various modes such as Solo, where the player chooses the song they want to sing and the difficulty. Duo is similar but with two players, with their scores added to get the final score. Duel mode requires both players to sing the same song, and the winner is determined by the best score at the end. Battle mode challenges one player to perform poorly, while Jukebox mode allows players to use the Wii like a jukebox to listen to songs and watch videos.
Performances can also be recorded and saved, to be listened to later.