21 Demands, Scuba Dice, Maeve O’Donovan and David O’Connor are all in the top 30, with 21 Demands in fact reaching no 2.
The download-only singles were recorded at their show at the Helix, Dublin, and made available last Friday.
The news comes as the show draws to a close: the semi-finals take place on Saturday 17 March with Louis Walsh as a guest judge, and Sunday will see Shayne Ward perform at the final.
The winner of this year’s You’re A Star will walk away with a recording contract with Universal Music, a publishing contract with Sony ATV Publishing and €10,000 worth of musical equipment from Roland Ireland.