Jennifer Lopez says she's 'the thinnest I've ever been' after filming Kiss of the Spider Woman - and calls making musical 'exhilarating and exhausting'

Jennifer Lopez is in top form.

The singer and actress, 54, who plans to go on tour over the summer, spoke about the job that helped her get into 'fighting shape.' 

'I just finished a movie called Kiss of the Spider Woman, where it was all singing and dancing, which was equal parts exhilarating and exhausting as well,' she told Kelly Ripa and Mark Consuelos on Live with Kelly and Mark. 

'Now, I’m ready to go. I’m the thinnest I’ve ever been. I’m in fighting shape right now.'

The film is based on the 1976 Manuel Puig novel by the same name, which takes place in a prison where a gay window dresser shares tales of a fictional actress he calls Aurora, with his cell-mate, an Argentine revolutionary. 

The Broadway production of the musical won seven Tony awards, and William Hurt won the Oscar Best Actor for the 1985 film adaptation.   

The Grammy winner said the singing and dancing required for her stage show is a great workout.

'It's moving your body, constantly moving your body, it's traveling, it's doing two hours of exertion every night... it's a time when I get, like, in a really good kind of healthy shape.'

As for the upcoming tour beginning on June 26 in Orlando, JLo said, 'I've been mapping it out and working on the set list and everything. I always like making a very exciting show.'

The Let's Get Loud artist said she doesn't ever want a fan to think 'oh, this is the part of the show where I can go get soda.' 

JLo said she'll be rehearsing for the new tour until the beginning of June when she'll kick off the tour.

The Emmy nominee just finished doing the press tour for her upcoming film Atlas.

Lopez plays a tactician who goes on a mission to stop an AI soldier who has determined the only way to save the planet is to eliminate humans. 

To do that, she will have to put her trust in another AI program named Smith. 

'My character is disconnected ... hasn't let anybody in,' she told Good Morning America.

'Doesn't trust AI, doesn't trust people, feels they always disappoint,' she added of her character. 'And little by little, this AI kind of chips away at her, chips away at her soul," she said. 'Together, they kind of become more human.'

The sci-fi film will be released on Netflix May 24.