"Brad looked super happy," an onlooker tells PEOPLE of the actor's Tuesday party ... in black slacks and a black button-up with an eclectic gold print. Carrying a yellow balloon, de Ramon was ...

She also had a stunning white cake surrounded by 50 gold candles and flowers on top. What’s a 50th birthday without a sea of balloons?! (Picture: Gavin Bond) Alan Carr was among the guests ...