Ke$ha's cheeky number!

Plus: Beyonce's PREGNANT GLOW! Are Rita Ora and Calvin Harris a couple!? And more!

Find out who's turning another year older this month

WATCH: Exclusive interviews with the cast of Star Trek Into Darkness

Chris Pine, Zachary Quinto and more talk with Derek Sante

REVIEW: Star Trek Into Darkness

REVIEW: Peeples

REVIEW: The Great Gatsby

WATCH: Backstreet's Back, Glee's Vocal Challenge + Viral Screams

Plus dudes in labor and Ryan Gosling!

WATCH: Floyd Mayweather, Celeb Face-Morphs + PSY Takes NYC!

WATCH:Taylor's Mansion and Is Carly Rae Jepsen Over 'Call Me Maybe' Jokes?

WATCH: Selena Gomez's Perfect Man, Laughing at Ryan Lochte and Michael Buble's Pregnant Crooning!

Study Finds Childhood ADHD Linked To Adult Obesity

Up to 20% of US Kids Have Mental Disorder

Study: No Need to Dramatically Cut Salt

Study: Cigarette Smoke Gets Into All Rooms At Hotels