Best app to preview new music on Iphone

[resorte]

Can anyone recommend a good app for cruising through large batches of new mp3s on the iphone and marking or playlisting certain tracks as 'good for DJ use' ?

This process with the stock iphone music app is very annoying.

[aidankhefron]

Have you tried the Last fm?

[Jeff Scott]

I use star ratings with the default app when i'm traveling to work etc.

1 is delete/shit
2 is listen again/undecided
3 is useable
4 is good
5 is top tune