EXCLUSIVE: Jimmy Fallon on Golden Globes Teleprompter Fail and Mariah Carey Zinger: 'We'll Have a Drink Over T

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"I was like, it's definitely live! It's definitely real!"

That's what host Jimmy Fallon said he was thinking when the teleprompter went out during his opening monologue at tonight's Golden Globes. "It's like, 'OK...Justin? Where's Justin Timberlake? Please, Justin, help me out on this one, what do I do?'" Fallon told ET's Leanne Aguilera at NBCUniversal's after-party.

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"I didn't memorize my monologue but I knew maybe the teleprompter might go out at one point, but I didn't imagine the first opening of the show," he explained, before joking, "If I have any problem in life, I'm like, 'Where's Justin Timberlake?' and he usually solves the problem. Which he did tonight as well."

The technical troubles also provided for a very timely Mariah Carey joke -- "I just got off the phone with Mariah Carey and she thinks that Dick Clark Productions sabotaged my monologue" -- which he said the writers came up with on the fly.

"We were like, 'That was odd,'" Fallon said. "She would laugh at it...We'll have a drink over this. It'll be fun."

Despite the brief snafu, Fallon was overall pleased with the show and especially his opening number, an extravagant parody of La La Land. "We worked so hard on that," he explained. "It was a big thing for us, even just booking all the celebrities. We got John Travolta to do that. I mean, come on. I freaked out!"

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As for the night's other unexpected moment -- Brad Pitt's surprise appearance amid his contentious divorce from Angelina Jolie -- Fallon had nothing but love for the actor.

"I love him and I love that he did it," he said. "That was really nice of him to do that. And he's probably going through some tough times right now, so I think he needs a little love. Everyone does."

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