It’s a reunion 35 years in the making, thanks to mayonnaise. More than three decades after the romantic comedy “When Harry Met Sally” first hit theaters, Billy Crystal and Meg Ryan are finally back together.

Meg Ryan and Billy Crystal recreated a classic scene from "When Harry Met Sally" for a new Super Bowl ad, with a special appearance by Sydney Sweeney.

Billy Crystal and Meg Ryan will recreate a famous scene from 1989's 'When Harry Met Sally' for a Hellmann's Super Bowl commercial

Billy Crystal and Meg Ryan have reunited for the 60-second ad 'When Sally Met Hellmann’s,' as they recreate the famous Katz Deli scene from 'When Harry Met Sally.'

The ad, created by the ad firm Edelman, is a redux of the famous fake orgasm scene, in which Sally Albright (Meg Ryan) attempts to prove to Harry Burns (Billy Crystal) that women can very convincingly fake orgasms.

“When Harry Met Sally…” stars Billy Crystal and Meg Ryan spoofed their classic scene from the iconic 1989 romantic comedy in which Ryan’s character, Sally, fakes an orgasm at lunch at Katz’s Delicatessen in New York City by parodying it in a Super Bowl ad for Hellmann’s mayonnaise.

The two actors revisit an iconic scene from their legendary romantic comedy in the commercial, a nostalgia play titled “When Sally Met Hellmann’s” (watch below). Ryan and Crystal play friends whose connection turns romantic in the 1989 movie written by Nora Ephron and directed by Rob Reiner.

It was so much fun,” Crystal told The Post of reuniting with Ryan more than three decades after their iconic 1989 rom-com.

Meg Ryan and Billy Crystal joined forces again in 2025 — 35 years after the release of their 1989 romantic comedy, ‘When Harry Met Sally’

Meg Ryan, Billy Crystal and Sydney Sweeney appear in a Super Bowl commercial for Hellmann's mayonnaise that recreates Ryan's fake orgasm scene from "When Harry Met Sally."

"When Harry Met Sally" co-stars Meg Ryan and Billy Crystal have yet to release the details of their upcoming "iconic" collaboration.