My iphone frozen with itunes usb icon on screen. iPhone 4S

This is the exact thing that happened to me..........HELP!!  

So about 20 minutes ago I connected my iPhone to my computer and iTunes prompted me to update it.  I accepted, but as it was applying the updates some type of error popped up.  Long story short, it failed to update and now when I turn on my phone it's frozen with the screen showing the USB cord & iTunes icons.  I've tried:

-Shutting it down by holding the sleep/power button

-Shutting it down by holding the Home + sleep/power button

-All of my USB ports on my computer

-Reinstalling iTunes

As soon as I turn it on, it briefly shows the Apple icon then it goes back to the same screen with the iTunes/USB icons.  When I connect it to my computer it makes the connection sound but it won't register on iTunes.