Mariah Carey shed tears as she celebrated the first anniversary of her marriage to actor Nick Cannon last night (April 30).

The singer sat in Nick's lap as friends paid tributes to the couple at the Palms Casino resort in Las Vegas.

Mariah's husband described his wife as “the most amazing person in the world” and “my rock”.

"I dedicate my life to her daily, and together this union is gonna last forever,” he told an audience of friends an family in the VIP section of Moon nightclub.

According to People, Mariah replied: "I have the best man in the whole wide world."



Mariah later joined Nick on the DJ decks as their celebration of marriage continued long into the night.

The public occasion was in sharp contrast the couple's top-secret marriage of twelve months ago.

The couple married in a private ceremony in the Bahamas just weeks after their began officially dating.

Nick is the singer's second husband following her five-year marriage to music mogul Tommy Mottola, which ended in 1998.

Mariah Carey and Nick Cannon celebrate their anniversary