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It’s not every day Flavor Flav, Patrick Stewart and Lance Bass all gather in one room.
But on Sunday, Aug. 11, producer Jennifer Klein invited Hollywood’s leading men to her Los Angeles home for her annual Day of Indulgence, which she “decided to give a new and fun twist” this year, she tells PEOPLE.
Dubbed “Mandulgence,” the jam-packed event saw everyone from Bill Maher to Garrett Hedlund to Hiroyuku Sanada indulging in pedicures, facials, massages and more as they caught up in Klein’s backyard to try out products from brands like OSEA Malibu, Clarins and Ember, shop button-downs from SANDRO Paris’ pop-up shop and get spontaneous piercings in the Maria Tash lounge (Maude Apatow and her boyfriend Patrick Gibson got his and hers piercings as the actress’ mom Leslie Mann looked on).
Patrick Gibson, Leslie Mann, Maude Apatow and Dax Shepard
Amy Graves
Cute couple Gibson and Maude arrived with her mom, who caught up with Shepard in Klein’s front yard. The “Armchair Expert” podcast host got eye treatments and reflexology from KNESKO while the Euphoria actress — who introduced her boyfriend to guests — got a vitamin shot from Pause Wellness.
Lukas Gage and Chase Stokes
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After catching up quickly inside, Gage headed outdoors for a Dazzle Dry manicure with a Heineken Silver in hand. Stokes — whose new film Uglies drops Sept. 13 on Netflix — picked up a Don Julio mini 1942 bottle on his way in.
Patrick Stewart and Hiroyuku Sanada
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Stewart brought his wife Sunny Ozell to the event, where he mingled with Sam Claflin and toasted Shogun star Sanada with Faire Le Fête sparkling wine.
Lance Bass and Michael Turchin
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One of the last to leave the bash, the singer and his husband relaxed with pedicures before picking out matching Cosabella pajamas and snacking on treats from Dunkin’, Baskin-Robbins and Reese’s.
Kelsey Grammer and Leslie Mann
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Mann and Grammer — who got his first pedicure in five years, he was overheard telling another guest — caught up in the living room, where Tocaya offered tortas.
Jackson White and Alana Haim
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A low-key White stopped Kelsey Grammer to say a quick hello before posing for a snap with Haim, who attended the event (where Cooper & Thief wine was served) with her sister Danielle.
Garrett Hedlund
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A late arrival, Hedlund was deep in conversation until the very end of the event — but took a break to check out sunglasses from QUAY.
Mario Lopez and son Dominic
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The TV host popped by the Hydrafacial station for an Eye Perk treatment before ending the day with his son Dominic at the LiveMore smoothie station.
Flavor Flav
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Fresh off the plane from Paris, Flavor Flav showed jet lag really is a choice. The rapper rocked head-to-toe Team USA and repacked his LeSportsac weekender for his next flight.
Sam Claflin and Cassie Amato
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Claflin — who was accompanied by his girlfriend Cassie — spent time catching up with a larger group, including Patrick Stewart, in Klein’s living room before heading home with a Samsonite suitcase.
Randall Park and Max Minghella
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Park and Minghella hung out with Max Greenfield, who arrived with longtime pals Kevin Zegers, James Marsden and Dax Shepard.
