Billy Crystal and Meg Ryan teased a long-awaited on-screen reunion with a mysterious Instagram post Jan. 22. In the photo, Crystal and Ryan sit next to each other on a brown couch, smiling. The furniture and yellowed floral wallpaper notably matches the setting of the final scene of their 1989 romantic comedy, "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.