Lisa and Toyo demonstrate the Star Guitar iPhone app with such paid-for enthusiasm that we just need to award them the Giz Video of the Day award. It's that good.

The app itself is very neat. You can play back synth guitar versions of popular songs by just tapping on chord buttons on your iPhone. What makes this video is the composition and the editing. It is AMAZING. Seriously, just watch it.

We think they should get your $3.99 just for making this video, with the fact that you get to play guitar or something on your iPhone as a bonus prize. [Amidio]