Why Charli XCX suddenly popped up on SNL? — Here’s what really happened

Charli XCX gave Saturday Night Live viewers a thrill Saturday night, unexpectedly joining singer Role Model onstage during his performance of “Sally, When the Wine Runs Out.”

The Grammy-winning pop star takes the SNL stage in a surprise cameo, slipping into the role of his “Sally girl,” a part usually filled by a surprise guest at his concerts.

This time, Charli took center stage herself, sending both the live audience and social media into a frenzy.

Role Model, making his SNL debut alongside host Amy Poehler, looked caught between amusement and awe as Charli matched his energy move for move.

Fans quickly noted she even wore the same “max’s kansas city” shirt the singer sported in promo shots earlier this week.

Their on-air reunion follows playful online banter about who should play “Sally,” after previous guest cameos from Conan Gray and Troye Sivan.

But tonight, Charli proved there’s no better “Sally girl” than the original pop rule-breaker herself.

The moment capped a star-studded episode, which also featured surprise returns from SNL legends Tina Fey and Seth Meyers.