Jason Derulo's ascent to pop's upper echelons has been at least partially fuelled by his combination of boyish charm and grown-up sexiness. Whether he's offering up Auto-Tuned apologies on the agitated “Whatcha Say” or getting playfully seductive on the jubilant “Want to Want Me”, Derulo's approach to writing and performing pop-R&B is simple yet effective: He combines big hooks, plainspoken lyrics and his soaring falsetto—not to mention the occasional shout-out to himself—in enticing tracks that work as well in the bedroom as they do on the dance floor.