After seeing previews of Kevin Hart and Olivia Munn's epic Lip Sync Battle performances earlier this week, it was obvious things were going to get interesting on this week's episode, and they didn't disappoint. Kevin went back to the '90s when he brought a whole crew of backup dancers on stage to help him perform Onyx's hardcore rap "Slam." Although it was ridiculously entertaining, Olivia's epic rendition of Taylor Swift's "Bad Blood" was the night's real winner. The X-Men: Apocalypse actress invited supermodel Chanel Iman and Taylor's real-life squad member Jaime King on stage for the performance, and they killed it. Watch all the action above, and then check out Beyoncé's surprise appearance during Channing Tatum's episode.