Overview
- Lopez kicked off "Up All Night Live in Las Vegas" at Caesars Palace on Dec. 30 with a two-hour-plus, career-spanning production featuring theatrical medleys and a 15-piece orchestra.
- Addressing online criticism of her wardrobe and age, she told the crowd, "If you had this booty, you'd be naked too."
- Ja Rule made an unannounced appearance to perform early-2000s hits including "I'm Real" and "Ain't It Funny."
- The show blended nostalgia and personal notes as she joked about past marriages, declared a "happy era," and cycled through high-fashion, revealing looks like a sheer spiderweb lace catsuit.
- The residency continues with shows on Dec. 31 and Jan. 2–3, then returns for additional dates in March 2026 through March 28 at The Colosseum.