Look who’s 3!
“Happy birthday, handsome! #happybirthdaybosley,” Horn captioned the image of the birthday boy and their 7-year-old daughter Simone.
The proud papa shared a sneak peek into Bosley’s Katy Perry-themed birthday bash.
“Thank you @missys_on_del_marfor making Bosley’s birthday so beautiful! He wanted “yellow, pink, balloons, bumbles and @katyperry” – we couldn’t have done it without you. #happybirthdaybosley,” he wrote.
Masterson Instagrammed an image of the Katy Perry cookies served at the outdoor party.
“When your son is turning 3 and wants a Katy Perry party – @singersisterssweets to the rescue!! @katyperry #thegunclesfamily#BosleyTurns3,” he wrote.
Horn and Masterson — who are BFFs with Beverly Hills, 90210 star Tori Spelling — welcomed their second child via adoption on Aug. 30, 2014.
Happy birthday to Bosley!
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