It's hard to imagine a better live debut than this, but we'd expect nothing less from Nicki and Beyonce.
Clearly excited with the results, Nicki said "it was epic."
"Oh my god, when Beyonce came out, you could feel it," the rapper told ET backstage after the performance. "It was electrifying. The place went nuts. It was like shaking, like, it was so insane -- and I was excited as a fan, too. Like, I was excited that they were about to experience this, because both of our fans have been threatening us online, saying that if we didn't perform together, they were going to hunt us down."