If you don't know who Iggy Azalea is, it's time to get familiar. She's an Australian-born rapper who's kind of like the grungier version of Ke$ha. In her single "Murda Bizness", Iggy talks about hitting the club with bad bitches, stackin' hundreds and a bunch of fifties. It's the most ghetto fabulous song I've heard in a long time, and it's accompanied by a fun Toddlers in Tiaras music video (above!).