With the Monday-through-Friday grind behind them, our favorite celebrities are getting social and active around the globe. Naomi Campbell  kicked off her Friday night with Sharon Stone  and Mary J. Blige at amfAR's glitzy Inspiration Gala in São Paulo, Brazil. In NYC, Sarah Jessica Parker  dazzled at the 2014 DVF Awards, Pharrell Williams jumped into his 41st year with a star-studded birthday bash, and Lady Gaga  donned yet another big wig as she took center stage. Elsewhere, Naomi Watts  scored some exercise and fresh air on a lovely LA day, and Chelsea Handler fit in with tourists in the Sunshine State. Scroll through to see all the exciting weekend fun unfold, and come back later to find out what the stars do next!
Michael Fassbender suited up for the Irish Film and Television Academy Awards in Dublin, Ireland, on Saturday.
Walking in the Rain
Blake Lively  braved showers while filming The Age of Adaline in Vancouver, British Columbia, Canada, on Saturday.
Raise Your Hand
Kate Moss  stood out in pink at amfAR's Inspiration Gala in São Paulo, Brazil, on Friday. Naomi Campbell  sat at the same table with Kate and designer Riccardo Tisci.
All About Fashion
Sarah Jessica Parker  had her hands in her pockets and a smile on her face at the United Nations in NYC, where she attended the 2014 DVF Awards.
Lady Gaga  sang her tunes during a performance at the famed Roseland Ballroom in NYC on Friday.
Pharrell Williams got a sweet smooch from his wife, Helen Lasichanh, at his 41st birthday celebration in NYC.
SpongeBob Party Time
Alicia Keys  and Swizz Beatz got in on Pharrell's birthday fun at his SpongeBob SquarePants-themed party.
Host With the Most
Chelsea Handler flashed her smile in Miami Beach, FL, on Friday, as rumors about a potential show on CBS  grabbed headlines.
Heidi Klum  took a photo with a fan on the America's Got Talent red carpet event in NYC on Friday.
The Right Fit
Newlywed Jamie Lynn Spears  tried on clothes in the Academy of Country Music Awards' artist appreciation lounge in Las Vegas on Saturday, one day before the singer hits red carpet on country music's big night.
Take Me Out to the Ball Game
Robin Thicke embraced the energy at the Dodgers game in LA on Saturday.
Naomi Watts  took advantage of sunny weather on Saturday, heading out for a bike ride in LA.
Lorde gave it her all while belting out hits at Lollapalooza Brazil in São Paulo on Saturday.
The New Age
Dan Reynolds of Imagine Dragons smiled at the audience during his performance at Lollapalooza Brazil in São Paulo on Saturday.
Sharon Stone , Naomi Campbell , and Mary J. Blige scored some face time with each other at amfAR's Inspiration Gala in São Paulo, Brazil, on Friday.