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.

It's time to return to Katz's Deli with the stars of "When Harry Met Sally" – this time though, it's for a Super Bowl ad

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

When I opened my Instagram feed and saw a picture of Meg Ryan and Billy Crystal together again, my first reaction was "AH!" — especially since they're sitting on a couch, just like they do at the end of When Harry Met Sally.

Meg Ryan and Billy Crystal recreate the iconic Katz's Deli scene from the rom-com When Harry Met Sally for a Super Bowl ad.

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

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.

St. Louis-based Budweiser has leaked its Super Bowl LIX commercial titled “First Delivery.” The new heartwarming ad will once again feature the company’s signature Clydesdale horses. In the ad, the young Clydesdale foal looks on as older horses embark on a beer delivery, but he is too young to join.

The filmmaker explains why no sequel is in his future, despite strong reviews and promising box office tracking.

Meg Ryan and Billy Crystal have finally reunited. The two When Harry Met Sally stars paid homage to their 1989 film on Instagram, with Ryan writing the caption, “It’s finally happening, we’re reuniting for something iconic.