Katy Perry's days of the single life are dwindling away, and on Saturday she celebrated her rite of passage: her bachelorette party.

Perry, sporting a veil from the bottom of the back of her bikini (think a peacock), arrived at Las Vegas's Hard Rock Hotel Beach Club pool with an entourage of 25 who included Rihanna and inflatable objects consistent with bachelorette parties.Lounging in the VIP cabana in 95-degree temperatures, the group went largely unnoticed while sipping champagne, beer and vodka and munching on finger foods.