Jessica Simpson seems to be doing all that she can to put her recent weight gain behind her - including getting back in shape, according to her personal trainer.

The country singer - whose fuller figure made headline news in January - looked visibly slimmer as she took to the stage for her last performance supporting the Rascal Flatts on tour.

The singer squeezed back into her Daisy Duke denim hotpants, a white corset, checked shirt and gold platforms, in a final attempt to prove that she remains confident despite recent criticism surrounding her weight.

Jessica's personal trainer Mike Alexander tells The Sun, "The whole thing wasn’t as traumatic for Jessica as everyone made it out to be.

"She’s a confident and naturally beautifully girl who works hard.

He adds, "Jessica is now at the end of her tour and looks great.

"It’s not easy to have a super strict diet when you are touring so you just have to make the best of the restaurants you go too but she’s knows what to eat and what not to and we talk about all of that."

See Jess' changing weight below