Lady Gaga’s “Judas” explores religious themes, sexuality and leaves us with more questions than answers

With “Girls,” Beyonce proves she still runs the world

Rihanna and Britney Spears do “S&M,” what’s next for pop music?

Kid Cudi announces he’s done smoking weed. Will it matter?

Cinderella: Selena Gomez, Brandy, Hillary Duff and more inhabit the princess role

Avril on Kesha, Mandy Moore on Rihanna, a list of charming and weird pop covers

With a new single, Nelly and Kelly Rowland are back for round two

Willow Smith uses Rihanna as muse in young career

Miley Cyrus and Billy Ray Cyrus fall into the Parent Trap

Pop & Circumstance: Can Grammy results redefine “Pop”?