Got an iPod Touch or iPhone? Like music games? Then download TapStar, a nostalgic rhythm game from EpicTilt that includes loads of content, currently 25 premium tracks exclusively from Sony Music Entertainment's superstar artists including Elvis Presley, Britney Spears, Cheap Trick, Cyndi Lauper, John Mayer, Los Lonely Boys, Sarah McLachlan, Three Days Grace, and P!nk.