Dead Mau5 footie Pajamas. These onesies pajamas are loaded with extras. Pump up the volume with these DJ inspired hooded jammerz. Here is "What's Hot" in the world of Adult Onesies, Footed Pajamas - one piece sleep wear craze. Check back to see what "Jumpin Jammerz" Pajama Professionals have created for you and your entire Pajama-Loving Family.