Rihanna's prolific output has produced many highlights, but Loud is perhaps her most essential and complete record. Combining her earlier dancehall and R&B-infused sound with more straightforward dance pop, it's an upbeat record that's spawned three No 1 singles in the US alone. The Drake collaboration "What's My Name?" is certainly a career highlight, her effortlessly cool delivery perfectly matched by Drake's vocals. A definitive album by one of the most talented pop stars performing today.