Jennifer Lopez is planning to add work-out design credentials to her name by bringing out a line of exercise clothes, to inspire her own battle to regain her pre-pregnancy figure, according to reports.

The singer/actress, who gave birth to twins Max and Emme in February, wants the clothes to go on sale alongside her current J.Lo, SweetFace and JustSweet lines.

A source tells OK! magazine: "She has some street gear already in her lines, but she wants something exclusively for sneakers, yoga pants and dance gear.

“She wants it to look great in the gym and in the street, and to be affordable and functional."