Jennifer Lopez is in her best shape when she welcoming the new year with fiancé Alex Rodriguez and their kids. JLo was photographed flashing her toned abs while hanging out with her daughter and ARod's children. 

Prior to the New Year celebration, the "On The Floor" singer was seen shopping in Los Angeles with her daughter, 11-year-old Emme, and Rodriguez's children, Natasha, 15, and Ella, 11. The former New York Yankee player has two daughters from his previous marriage to singer Marc Anthony. Lopez has twins, Emme and Max, with ex-husband Marc Anthony. 

JLo was seen clad in a sheer white T-shirt that was tied up above her belly button which flashed her toned stomachShe paired the shirt with a black blazer and a pair of mom jeans that had sequins and sparkles on it. She accessorized with a pair of shades, a black bag, and transparent footwear. The Hustlers actress wore very minimal makeup and tied up her locks in slicked top-knot. 

She was photographed holding her daughter's hand while walking. Behind them were Alex's daughters who are both dressed down for the outing.

Lopez previously shared her secrets for having a toned body and glowing skin at the age 50. She confessed that working out is always a priority to her and dancing plays a huge part in keeping her body in shape. 

JLo has been a fan of both fitness trainers Tracy Anderson and David Kirsch. The singer said she loves the two different approaches that the trainers have been giving her. 

Her workout with Anderson involved more relaxed and freestyle approach and incorporating arm weights with moves to tone her butt, thighs and core. Her workout with Kirsch are slightly intense as it typically consist of kickboxing, circuit training, lunges, burpees, and ab workouts. 

As for her diet, JLo go with healthy choices in both home cook meals and when they are dining out. She always carry fruit and vegetables for quick snacks in between meals.

The Shades of Blue star also drinks a lot of water to keep her body hydrated. Lopez rarely do alcohol and don't take a sip of coffee. She also makes sure that she gets eight hours of sleep a night.

Meanwhile, Lopez also shared on her Instagram story a video of her and Rodriguez welcoming 2020 together. They were also seen dancing at their New Year's Eve celebration with their family and friends. The soon-to-be-married couple shared kiss right after the clock struck midnight. 

The Second Act actress and ARod announced their engagement in March. She confirmed that they will be tying the knot this year but the couple has been keeping their wedding details underwraps.