OK! Quick Pics: Katy Perry Rocks Killer Updo, Kourtney Kardashian Takes A Stroll With Son Mason and More!

Katy Perry rocked a killer braided updo during Paris Fashion Week which she paired with a cool printed dress!

Imagine Dragons gave fans a special private concert at the newly revamped Hard Rock Cafe Baltimore. To celebrate the grand reopening, Hard Rock opened the updated cafe with a guitar smash. How cool?

Gillian Jacobs and Beth Behrs looked gorgeous as they caught up at the opening of Stacey Todd West Hollywood with Stacey Todd and rag & bone.

Allison Williams sipped on her favorite new drink, a Grand Cru Caramelito, at the Nespresso Pop-Up Boutique in Grand Central Terminal.

Common was all smiles while playing around with his camera before hosting the Canon PIXMA PRO City Senses Pop-Up Gallery in Chicago.

House of Cards star Kate Mara and guests enjoyed a live performance by DJ Questlove while celebrating the Release of Jagermeister Spice.

Julianne Hough checked out all the fab selections at the QVC Presents FFANY Shoes on Sale event in New York City. You can add a pair to your collection too on October 10 from 6pm to 9pm EST on QVC.

Ashley Greene wowed in white at the CBGB premiere in Los Angeles.

Hugh Jackman was a proud papa while picking up his daughter Ava from school.

Kourtney Kardashian went for a stroll with her son Mason while taping a segment for Keeping Up With the Kardashians.

Ciara was spotted in Paris dressed to the nines in a pink ensemble and white statement sunnies.

Actors Rose Byrne, Bobby Cannavale and Jamie Foxx went back in time while shooting a scene for their new flick Annie.