The nominations for the 55th annual Grammy Awards were announced this week, with a slew of nods for Mercury artists . Frank Ocean, Taylor Swift, Rihanna, Jay-Z, Kanye West, Nero and Nas all received multiple nominations across the board. 3 out of 6 of the Best Rap Song nominees were Mercury releases. Frank Ocean picked up six nominations in total, including one for his debut LP 'Channel Orange' in the Best Album category. Nero were nominated for Best Remix for their reworking of their track 'Promises' with Skrillex. Click here to read Billboard's summary of the major category shortlists.