Abhishek Bachchan-Aishwarya Rai
The media was abuzz with rumours that Abhishek and Ash were an item long before they disclosed the fact, and there were denials from both sides.
Then, all of a sudden, the couple got engaged the weekend their film, Guru, released. Very conveniently, Guru saw the actors play a married couple, and their wedding scene in the film was repeatedly played on television channels. The engagement made Guru one of the first big hits of the year.
Also see: The Aishwarya Abhishek wedding