Blake Lively was decked out in purple Elie Saab, a pair of Louboutins, and a loose side braid as she stepped out to celebrate Tiffany & Co.'s new Spring sunglasses collection yesterday in NYC. Earlier this week, The Town actress rocked a sexy, sequined look to tape her appearance on The Late Show, which airs tonight. She's been keeping busy after hours with parties and promotional duties, but her days have been devoted to work on Gossip Girl. Blake taped some romantic scenes alongside her new onscreen love interest, Sam Page, this month and shared a sweet PDA with her real-life love, Penn Badgley, on the set last week.

Gwen Stefani watched Kingston show off his soccer skills in LA on Thursday afternoon.

Halle Berry showed off her toned legs yesterday in a short purple dress at a promotional event for her new scent, Reveal, in Hamburg, Germany, and today she was in a strapless number for another meet and greet in Warsaw, Poland. Her latest concoction is a follow-up to her first successful fragrance, Halle by Halle Berry, which won big at this year's Fifi Awards. Between her personal and work obligations, Halle's rapidly racking up flier miles. She just left France, where she joined her Dark Tide costar Olivier Martinez for a romantic stroll in Paris, and they also recently enjoyed a loved-up weekend in London.

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Reese Witherspoon joined Tom Hardy on the set of This Means War in Vancouver Friday.

Alexander Skarsgard got into the Oktoberfest spirit with some lucky barmaids today in Munich to celebrate the debut of True Blood on German television. The series is currently on hiatus here in the States following the big season three finale, but Alexander's still hard at work. He spent the end of Summer away from his girlfriend, Kate Bosworth, filming his big-budget blockbuster Battleship with a frequently bikini-clad Rihanna in Hawaii. The actor recently talked to GQ UK about his new costar, his risqué Rolling Stone cover, and why he doesn't mind getting naked on screen. He said:

• On why he's fine with stripping down on set: "Because I was born that way? I didn't write the scripts but I don't mind it if it makes sense. It's about being comfortable and if it makes sense story-wise. The only time it can get awkward is if you feel exploited, like, 'Why am I standing here naked?' and I've never felt that. There's always a reason for it on the show and it's always at great moments: fun, crazy scenes."
• On working with Rihanna: "[Filming Battleship] is a different experience because Rihanna, we're out there together for a couple of months. This is her first movie but she's great, she's really really good in it and her working . . . She's got a crazy schedule. She's really diligent and I'm impressed."
• On the infamous Rolling Stone cover: "[The photographer] explained it and it was just one of those things in the moment where we all looked at each other, we'd spent all day with the photographer, we felt comfortable with him, we knew that he was great and the atmosphere was right and we were like, 'F**k it, let's do it.'"
• On auditioning for the part of Bill before landing Eric: "I'm pretty sure Alan [Ball] already knew that I was better for Eric than Bill. It wasn't really a case of me and Stephen for Bill. I think Alan was just scanning the market and meeting actors and everyone read for Bill. But of course I couldn't play him. I'm definitely not right for Bill."

Elisabeth Moss and Jon Hamm attended a screening of Mad Men in Germany Thursday.

Gisele Bundchen donned a mask in Paris after stripping down to her lingerie, Lea Michele revealed that Glee helps her see her own true beauty, and Bradley Cooper gushed over girlfriend Renee Zellweger. Check out an all-new PopSugar Rush!