1 of 11
2 of 11
3 of 11
GIRLS' DAY OUT
With daughter Keeva, 19 months, in her arms and daughter Satyana, 4, leading the way, Alyson Hannigan gets moving in Studio City, Calif., on Tuesday.
4 of 11
5 of 11
6 of 11
NOT SO BOARD
Who knew he was such a pro? Sean Penn continues his Hawaiian holiday with some surf time Tuesday, catching a wave off the coast.
7 of 11
Aloha! President Barack Obama takes a few minutes out of his Hawaiian vacation to greet well-wishers at the Kailua Beach Shopping Center in Oahu on Tuesday.
8 of 11
Idris Elba kisses 2013 goodbye on Monday as he plants one on Mandela: Long Walk to Freedom costar Naomie Harris at the Capri Hollywood Film Festival in Italy.
9 of 11
Konichiwa! Singer Ariana Grande greets admirers on Tuesday while walking through Narita International Airport outside of Tokyo. "I love my Japanese fans so much," she Tweeted. "Thank you for the overwhelmingly warm welcome at the airport. You are the most adorable humans ever."
10 of 11
ON THE WATERFRONT
Marc Anthony gives Chloe Green, girlfriend and Topshop heiress, a shoulder to lean on on New Year's Eve as the two climb aboard a yacht in Barbados.
11 of 11
Here we go! Minnie Driver's son Henry, 5, gets a free ride through LAX on Monday after arriving back in town with mom.
The Story Behind Kendall and Kylie Jenner's Matching Ferraris