The `My Heart Will Go On` singer and her husband Rene Angelil are now the proud owners of Montreal`s famous Schwartz`s store, which was founded in 1928.
The shop has become a landmark for locals and tourists alike and as well as its amazing sandwiches, it is also famed for its timeless decor.
Rene said: "I have so many great memories of being there with the guys, and with Celine and our families throughout the years. It`s the most unique restaurant in the world and we`re thrilled to be a part of it."
The Canadian couple - who have three children together - have also partnered with a chain of 1950s diners in Montreal.
They hope to maintain the authenticity of the restaurants and only make necessary improvements.
Celine - who has sold millions of albums worldwide - recently said she felt fortunate to be in such a position to be able to make purchases like this.
She said: "My fans bought me my house. They bought my records ... I`m very fortunate, and people have bought my albums year after year, and they come to see the shows, and it`s expensive, and they still come."