IPhone 4 screen is unresponsive?

My iPhone 4 screen stopped responding about 2 hours ago and still isn't working, what had happened was I was just shutting apps down by double tapping the home button and flipping up and then I was checking a text, listening to music, doing multiple things and then it shut kinda froze and the screen went black, yet my music was still going on and my phone was working, but the screen wasn't. Is there anyway I can fix this fast? Have any of you had this issue?

I've had this just do one of three
1. Get a new phone 2. Shut it off for 24 hours then check on it 3. Genius bar

Reboot your iPhone. Hold down the power switch til the power icon comes on, turn the power off, wait a minute, and turn it back on. Maybe it will work then.

If not, you've bricked it and have a trip to the Genius Bar in your future

You need a new phone