Ah, there we go: "Fancy," the Iggy Azalea song featuring a hook from British treasure Charli XCX, is finally your No. 1 on the Billboard Hot 100. This is prime Song of Summer position, assuming "Fancy" can hold off Iggy Azalea's other song — "Problem," by Ariana Grande, which is currently sitting at No. 2. It is only May 28! Anything (involving Iggy Azalea) can happen.