Need new songs to listen to! Any suggestions?

So long story short, I need some new songs for my MP3. It's not that I don't like the songs I have on there, it's just I want to hear something new :) To get an idea of what I like I like bands and artists like Hedley, Faber Drive, A Rocket to the Moon, Avril Lavigne, Kelly Clarkson. I like sad songs too :P Thanks guys :)