OK! Quick Pics: Kendall Jenner Spotted With Mystery Boy, Robin Thick Takes Paula Patton Out For Date Night and More!

Kendall Jenner was spotted out in Hollywood with a mystery boy. Could he be her new beau?

Alexa Chung celebrated the eighth annual Teen Vogue Fashion University alongside Christian Siriano, Coco Rocha, Nanette Lepore and more.

Kourtney Kardashian wowed in a perfect fall ensemble made up of Blaque Label's Leather Tank, printed slacks and a denim jacket. The outfit wouldn't be complete without her aviators, satchel and strappy sandals!

Giuliana and Bill Rancic felt the burn while hosting a charity ride at Flywheel on behalf of Danskin with proceeds benefiting the Dr. Edward T. Rancic Memorial Fund for Cancer Research at the Foundation for the National Institutes of Health.

Mario Lopez and Rainn Wilson got silly with light sabers at the Los Angeles premiere of their new flick, The Stream. Not only did the movie give 200 kids a chance to assist in production, but will give back to The Boys & Girls Club of America with 80% of the profits.

Lo Bosworth danced the night away at Gary’s Loft for the launch of Olmeca Altos Tequila alongside her best friend, Jilly Hendrix, who djed the swanky event!

Reese Witherspoon was spotted enjoying a little retail therapy at Pirch in Glendale, California.

While in London, Robin Thicke and Paula Patton enjoyed a date night with dinner and a stroll throughout the city's beautiful streets.

Which celeb is hidden underneath all that pink tulle? Martha Stewart who walked the purple carpet as Fairy GrandMartha for HUB Network's First Annual Halloween Bash.

January Jones brought her little guy Xander along for a meeting in in Los Feliz, California.

How does Alessandra Ambrosio stay in shape? By attending going yoga multiple times a week!