Jennifer Lopez sets pulses racing with her unreal abs as she works up a sweat

She's already in incredible shape, but Jennifer Lopez is determined to be at her fittest before heading out on tour.

The 49-year-old actress and musician looked years younger than her age in a photo posted to her Instagram Saturday highlighting her washboard abs.

Demonstrating supreme stamina, the ever-busy artist fit in both an intense gym session and a rehearsal for her upcoming 32-date summer tour in the same day.

Stunning: Jennifer Lopez, 49, showed off her stunning washboard abs in a gym selfie posted Saturday on her Instagram

Stunning: Jennifer Lopez, 49, showed off her stunning washboard abs in a gym selfie posted Saturday on her Instagram

JLo gazed intensely in the photo while wearing a simple white sports bra that put her well-muscled arms and chiseled midriff on display.

She added a pair of pink and purple leggings, which were mottled with little dots. 

The 5ft5in Out Of Sight star completed her sporty outfit with a white and gray Nike trainers.

Her brunette tresses were held back in a tight bun, highlighting a gleaming pair of jeweled earrings.

Rock-solid physique: JLo was dressed in a simple white sports bra that put her well-muscled arms and chiseled midriff on display

Rock-solid physique: JLo was dressed in a simple white sports bra that put her well-muscled arms and chiseled midriff on display

Form-fitting: She added a pair of pink and purple leggings, which were mottled with little dots and showed off her pert derriere

Form-fitting: She added a pair of pink and purple leggings, which were mottled with little dots and showed off her pert derriere

'Getting it in right before rehearsals. Almost tour time,' she captioned her gym selfie.

Jennifer also posted a video of her workout routine from the same session.

The If You Had My Love singer showed off her pert derriere while strengthening her arms and core.

In March, Harper's Bazaar compiled a master list of statement JLo has made about the diet and exercise

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