The actor shows his support for Barack Obama while biking through New Orleans. Plus: Zac & Vanessa, Gwen & Kingston, Miley Cyrus and more

JUMP FOR JOY

Although her birthday isn't until Nov. 23, Miley Cyrus gets a jump on her sweet 16 celebration during a concert and celebration at Disneyland in Anaheim, Calif., on Sunday. "This is the most amazing sweet 16 that a girl could have," the Hannah Montana star told the crowd from the stage.