"So this is what's it's like before the show. I sit here, no hair, no makeup, no nothing, just trying to get mentally prepared to give you all I have," she said in a video before heading on stage for her residency concert at the AXIS theater at Planet Hollywood in Las Vegas.
"Getting ready for show night... #jlovegas #allihave #letsgetit," Lopez captioned the clip.
The mother of two is in constant work mode. Earlier on Friday, she shared a clip from her NBC dance competition show, World of Dance -- declaring she's "just as obsessed" as ETonline!