After releasing an endless stream of mixtapes and earning his keep in the underground, rapper Lil Wayne found himself at the top of the hip-hop world by 2008. That made it the perfect time to release “Tha Carter III,” which famously sold 1 million copies in a single week. Not only did the work win Best Rap Album at the Grammys, but its most popular single, “Lollipop,” won Best Rap Song.