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US rapper P Diddy has described Barack Obama’s nomination as the Democrat Party’s candidate for the American presidency as “one of the greatest and proudest moments” of his life.

Obama declared himself victorious over his main rival Hillary Clinton on Tuesday (June 3rd) after securing an insurmountable number of delegates.

The Illinois senator will now go head-to-head with Republican John McCain in November’s general elections.

Speaking to MTV, P Diddy, whose real name is Sean Coombs, said Obama’s win was “history in the making” and “proof that we (Americans) do live in the greatest country in the world.”

Clinton will formally withdraw from the race on Saturday and express her support for Obama, who is battling to become the country’s first black president.

Obama has already established a team of people who will help select his running mate in the presidential contest, with many commentators expecting him to install Clinton in the position.

CLICK HERE to see Gigwise's round up of music stars who endorse Barack Obama.