50 Cent's Sprits Company Partners With Stanley Cup Champ Vegas Golden Knights

50 Cent's booze brand is adding ice to the mix ... as in, a new partnership with the Stanley Cup champions ... The Las Vegas Golden Knights.

The NHL club, which hoisted professional hockey's trophy Tuesday night, announced a multi-year partnership Wednesday with the rapper's spirits company.

50 Cent's Sire Spirits, which makes Branson Cognac and Le Chemin du Roi Champagne, will now be the official cognac and champagne of the Vegas Golden Knights ... giving 50's brand a presence in the team's arena and on its digital platforms.

In fact, Fiddy was on hand to watch the Golden Knights beat the Florida Panthers in Las Vegas to secure the franchise's first Stanley Cup Tuesday night ... and the team partied with his booze in the locker room after the series-clinching win.

The collab isn't just about alcohol ... 50 Cent's G-Unity Foundation is also teaming up with the Vegas Golden Knights Foundation to serve the community in Sin City.

50 Cent's Sire Spirits is on a win streak just like the Golden Knights ... as we first reported, the brand just squashed a beef with Remy Martin over its cognac bottle design.