Whether she's turning heads with risqué outfits or turning out galvanizing rallying cries masked as relentlessly catchy pop songs, Lady Gaga revels in smashing expectations. She honed her craft as a hitmaker for the likes of Britney and Fergie before commanding the spotlight with the jittery, electrifying dance pop of 2008's The Fame. On subsequent albums, Gaga has ricocheted between mesmerizing performance art (the Beyoncé-featuring “Telephone”), empowering ballads (“Born This Way”), and disco-fied bangers (“Applause”), turning each single into a de facto spectacle.