Courtesy of Michael Bezjian/WireimageHappy birthday, Stephen Amell!
The super hunky Arrow star celebrated turning 32 this week at last night's F--k Cancer event at Bootsy Bellows. Joined by celebs like Topher Grace, Ashley Benson, Zachary Levi, Shane West, Chris Zylka and brother Robbie, Amell was surprised with a delicious birthday cake.
Other stars spotted out and about…
Tyra Banks, enjoying an intimate dinner with a male pal at Westwood's Napa Valley Grille.
Olivia Munn, Sex and the City actor John Corbett, D.L. Hughley and Yvette Nicole Brown taking part in the 6th Annual Television Academy Honors at the Beverly Hills Hotel.
Rod Stewart, grabbing a bite to eat at Fig & Olive Melrose Place in West Hollywood.
Emily Deschanel, Josh Radnor and Moby, toasting author Rory Freedman at a Hollywood Hills party for her new book, Beg: A Radical New Way of Ragarding Animals.
Cee Lo Green, having dinner at RockSugar Pan Asian Kitchen in Century City, Calif.
Toni Braxton, Jason Alexander and Bob Saget attending the 13th annual Lupus L.A. Orange Ball in Beverly Hills.
Rumer Willis and beau Jayson Blair, visiting street vendors while vacationing with his parents at the Porta Hotel Antigua in Guetemala.
Carmen Electra, celebrating her 41st birthday at Crazy Horse III Gentlemen's Club in Las Vegas.
Sean "Diddy" Combs, hosting the Fight Night afterparty alongside girlfriend Cassie at the Palms Pool.
Also in Vegas, Ashlee Simpson, Odette Annable and a group of girlfriends celebrated a gal-pal's bachelorette bash at Tao Beach's summer kick-off pool party.
The View cohost Elizabeth Hasselbeck, prepping for National Family Playdate day with her family as part of the Active Family Project's new campaign in NYC.
NBA great Charles Barkley, hitting the gym at the Four Seasons in Atlanta.
Dallas star Jesse Matcalfe and girlfriend Cara Santana working out at Talise Fitness at the Jumeirah Emirates Towers in Dubai.
—Additional reporting by Baker Machado