During the first half of the show, Timberlake led into "Cry Me A River" with a soulful rendition of Juicy J's "Bandz A Make Her Dance." Hearing him sing Juicy's hit song backed by a live band got the crowd screaming. Right before the breathtaking performance of "Pusher Love Girl,"  JT sang/rapped the chorus of Jay-Z and Kanye's "N****s in Paris" and later sang "Rock Your Body" to the beat of Jay's "I Just Wanna Love You (Give It To Me)."

We know JT is down with Jay, and has been hip-hop since his early N Sync days—hello, "Girlfriend." Between his performance of "Suit & Tie" and the "Sexy Back" finale, he rapped Trinidad James' "All Gold Everything," too.

And he just couldn't stop chanting "Turn Up, turn up, turn up" to the crowd.