1. Drake & Future Nos. 1 & 2 on Billboard Artist 100

    September 29, 2015 4:18 PM EDT Thanks to the lofty launch of their mixtape album, the hip-hop stars roar to the Artist 100's top two spots. Plus, Lana Del Rey reaches the top five. Drake is the top musical act in the U.S., crowning the Billboard Artist 100 chart (dated Oct. 10). Meanwhile, Future ranks second, with…