Tonight...A new year and a new era for Jennifer Lopez. ET's one-on-one with JLo as she returns to Vegas. Then, Cardi B claps back. Her message to fans not happy about her romance with NFL star Stefon Diggs. Plus, Post Malone's live stream flip out. See the backflip that burned him. And, counting down to 2026. What the networks have planned and why Snoop Dogg's special got canceled!