Jennifer Lopez is feeling good about ending her Las Vegas residency and she wanted everyone to know about it. On Wednesday, the 49 year-old singer/actress posted a photo of her flexing her biceps on Instagram. The results are stunning.

"When I started this run I thought omg 15 shows in 27 days that’s a lot... but I made a promise to myself that instead of letting it wear me down," she says. "I would be even stronger at the end of it..."

And she did exactly that. See the photo below:

A post shared by Jennifer Lopez (@jlo) on Sep 26, 2018 at 2:40am PDT

Her show, Jennifer Lopez: All I Have at the Zappos Theater inside Planet Hollywood continues until this Saturday, September 29th.

Related: Jennifer Lopez' 'Second Act' To Release During The Holidays