At 43 years old, Jennifer Lopez is Harper’s Bazaar’s February 2013 cover girl and she’s got glamour down.

Jennifer Lopez is standing on the terrace of the Ciragan Palace hotel in Istanbul, shooting the cover of Bazaar. It’s an incredibly grand palace, and she’s in an incredibly grand Versace. But she’s goofing around, doing the robot and various girl-on-the-go catalog poses.

“We’re losing the moment!” laments the photographer. But then, boom: Lopez shakes her shoulders and fixes her with a sexy laser stare. J. Lo™ has arrived. “Oh, honey,” she says soothingly, “I’ve been doing this for 20 years.”

The next night, Lopez is on a yacht on the Bosporous, on her way to the 32nd concert date of her world tour (which overlapped a 24-date American tour with Enrique Iglesias). She’s trying to remember the shoulder thing, but with her four-year-old twins, Max and Emme, running around and an entourage that includes her boyfriend, Casper Smart, and her mother, Guadalupe, it’s not happening. Instead, in stage makeup, sweats, and an epic cashmere scarf, she’s absorbed with a studded Hermès cuff in a magazine. Rocks Jenny’s got? “No,” she says, giggling. “Rocks I wanna get.”

Read Full Story/ Jennifer Lopez Interview with quotes on career and family on Harper’s BAZAAR

Photo Credit: Katjia Rawles