Jimmy Fallon is literally already laughing in his SNL promo

Jimmy Fallon is back — and can’t control his laughter.

Fallon is hosting Saturday Night Live for the third time this weekend, and he’ll be accompanied by musical guest Harry Styles. Both men appear in the new promo, which features them casually strolling toward the camera as jazz music plays. But it’s Fallon we’re dealing with here, so it shouldn’t come as a surprise when he breaks in the final bit of the promo, and Styles goes with him because it is so infectious.

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Before losing it, Fallon excitedly reminds us that this weekend’s episode will pretty historic. “We’re going live coast to coast for the first time ever. It’s going to be great,” says Fallon as he tries to push Styles out of the way.

Watch the promo above.

SNL will air on NBC at 11:30 p.m. ET, 10:30 p.m. CT, 9:30 p.m. MT, and 8:30 PT.