1 of 15
Jon Hamm and Jessica Paré soak up the sun while shooting scenes for Mad Men's latest season in Maui, Hawaii, on Wednesday.
2 of 15
Halle Berry and Tom Hanks play hard on the red carpet Wednesday at the Hollywood premiere of Cloud Atlas.
3 of 15
ON THE BALLOT
Rock the vote! Katy Perry – who celebrates her 28th birthday today – gets the crowd energized while performing at a campaign rally for President Barack Obama Wednesday night in Las Vegas. "The PRESIDENT gave grandma and I unforgettable sour outs amp now I am officially 28!" she Tweeted. "Best. birthday. ever."
4 of 15
Amy Poehler picks up her birthday boy, 3-year-old son Archie – who turns 4 on Oct. 25 – in Beverly Hills on Wednesday.
5 of 15
BACK IT UP
Don't look behind you! Kelly Ripa goofs around before making her way inside GQ's Gentleman's Ball with Live! cohost Michael Strahan in New York City on Wednesday.
6 of 15
7 of 15
ON THE NOSE
Nice to sniff you! Prince Charles learns the hongi, the traditional greeting (expressed through the rubbing or touching of noses) from the Maori community of New Zealand, on Wednesday during a reception at London's St. James Palace.
8 of 15
RED ALL OVER
Newlyweds Stanley Tucci and Felicity Blunt stick close together while supporting the Center for Reproductive Rights on Wednesday in New York City.
9 of 15
10 of 15
Coming through! Olivia Wilde and Jason Sudekis take in the sights by quadcycle Wednesday while touring Rome's Villa Borghese park.
11 of 15
12 of 15
13 of 15
Doting dad Chris Martin goes flying down a slope with son Moses, 6, and daughter Apple, 8, during a fun-filled hike Wednesday in Hollywood.
14 of 15
Nicole "Snooki" Polizzi shows off what GTL can do while exiting the Today show studios Wednesday in New York, where the Jersey Shore star talked up her life as a new mom with fiancé Jionni LaValle.
15 of 15
Vince Vaughn shows off his best funny face while filming a scene for new film Delivery Man on Wednesday in Brooklyn Heights, N.Y.