Is there an app that can change app icons?

My friend showed me her iphone and the icons looked like an updated version or something. The safari icon was a pink polka-dot background with the compass thing and the facebook icon looked all different. I asked her how she did it but she wouldn't say. Her iphone isn't jail-broken. Is there any way that I can do this with the apple ipod touch 4th generation?

Yes just go on the App Store and type icon and it should be the second or third one… It's called app icons-customize your…