OK! Quick Pics: Anna Kendrick Guest Judges on SYTYCD, Miley Cyrus Walks Her Dog, and More!

Miley Cyrus was feeling a little shy and kept her hood up while walking her dog in LA. Although she was in all black, her spirits were apparently bright—she was jammin' to her iPod the whole time!

Reese Witherspoon looked polished in a turquoise sweater and low pony while leaving a trip to the grocery store. Looks like she didn't find what she was looking for, though.

Gwen Stefani makes sure her porcelain skin doesn't get a sunburn while out at the London Zoo with sons Kingston and Zuma.

Tara Costa, one of the finalists on The Biggest Loser 7: Couples, competed in the IRONMAN Lake Placid. Tara tested her endurance and completed the race in just under 14 1/2 hours. OMG!

Denise Richards loves stylist Lori Goldstein's new collection, LOGO, and so do we! Tune in to QVC tomorrow at 1 p.m. ET to get styles from her newest collection!

Robin Thicke's wife Paula holds son Julian close as the family ventures out into NYC. How cute!

After recently appearing in public for the first time as a couple, Ashlee Simpson and BF Evan Ross can't keep their hands off of each other—even while strolling through the airport.

Emma Roberts takes a lunch break while filming American Horror Story on location in New Orleans. Watcha eating, Em ?

Backstreet's back, alright! Sorry. Had to do it. The boys took us back to 1999 as their performed a free concert at The Grove in LA and looked mighty fine while doing so.

Anna Kendrick ditches her pitch perfect voice for an eye for dance as she takes a seat on the judge's panel at So You Think You Can Dance.

Amy Adams looks unrecognizable on the set of Big Eyes without her signature red locks while filming scenes with Christopher Waltz.

DJ Chelsea Leyland looked AMAZE in a custom skin-tight catsuit at her 25th birthday hosted by DKNY Jeans. What better way to celebrate the big 2-5, right?