A passionate debate about the Seattle rapper's likely win had been percolating on the internet for months. Many pointed to Kendrick Lamar's "Good Kid Maad City" as the LP that should have won Best Rap Album, and to Kanye West's "New Slaves" for Best Rap Song. Part of the controversy focuses on whether Macklemore is more a pop artist than a pure rapper, while others wonder if Macklemore, who is white, attracts the attention of Grammy voters who may not have otherwise paid attention to the category (Grammy voters don't cast ballots for every category -- they can vote for a maximum of nine categories and are supposed to focus on what they know).