As we told you last week, Beats By Dre has set up a pop-up shop in the heart of Soho, open to the public through January 2012. One of the super cool features they have in the store is a built-in recording booth (equipped with Beats headphones, of course) for the celebs that stop by so they can record a freestyle with high quality sound. Freeway was the first to try out this feature, and he went in over Beats CEO Dr. Dre’s classic track, “Still DRE.” Check it out below.