Good Songs I Should Download?

I need some more songs on my iPod! Could you guys tell me some good ones I should download??

To give you an idea, some of my faves are:

'Bad Influence' by P!nk
'Because I'm Awesome' by The Dollyrots
'Everybody Wants to Rule the World' by Care Bears on Fire
'Hot' by Avril Lavigne
'Misery Business' by Paramore
'Born This Way' by Lady GaGa
'Wondergirl' by Hey Monday
'I Don't Wanna Dance' by Hey Monday
'Rill Rill' by Sleigh Bells