Drake & Big Sean Perform At Kylie Jenner’s Sweet 16

Kris and Bruce Jenner of Keeping Up with the Kardashians know their Hip-Hop, and for their daughter Kylie's Sweet 16, they surprised her and her party with none other than Drake and Big Sean. You can check out plenty of Vine's from the night above and below; I'm just wondering how much it was to get these artists on stage.