From Billboard.com: Iggy Azalea’s cameo in Furious 7 goes by pretty fast.
When Dom (Vin Diesel) takes Letty (Michelle Rodriguez) to the Race Wars in L.A. to help her regain her memories, Letty takes on a driver and wins the quarter-mile race. The crowd swarms around the woman they thought had been dead in celebration.
And that’s when Iggy appears to deliver this line: “Hey, there’s the girl I’ve heard so much about. Where you been at, ghost girl?”
At least that’s one line more than what Rita Ora got to say in the franchise’s previous installment, Fast & Furious 6.