Whats that game on ipod touch that's like tap tap but it has stars instead of colorful balls?

my friend had a 1st generation ipod touch and she had a game-i think it was tap tap..like an old one. but instead of little balls they were like stars and you did the songs to the ones you have. like say i have the song circus by britney spears, the it would find it an it would have a couple, each a little... show more my friend had a 1st generation ipod touch and she had a game-i think it was tap tap..like an old one. but instead of little balls they were like stars and you did the songs to the ones you have. like say i have the song circus by britney spears, the it would find it an it would have a couple, each a little different-i don't know if people make them and put them up or something.

does anyone know what game this is?
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