Baltimore Rapper, Caz a.k.a. Chick With Siri Voice Gives Directions To Your Baby Daddy House + More Impressions! A rapper from Baltimore named HazmatCaz has gone viral today, although maybe not for exactly the reason she might want. The reason for her newfound fame is that she sounds like Siri, Apple’s virtual assistant who pings into your life every time you say “seriously” too loud. Someone who met her posted a video of her giving directions, GPS-style, on Twitter.