Play music on your tee with these exclusive Old Navy and ThinkGeek t-shirts.
Old Navy teamed up with ThinkGeek to launch a range of electronic guitar t-shirts with real-working chords. The t-shirts also come with a mini-guitar amp that can be clipped onto a belt, on which the wearer can adjust the the volume by turning the tone knob. To play a chord, the user simply pushes down on a dot marked on the neck of the guitar and then make a strumming motion. The electronic components can be easily detached from the t-shirt for washing.