NickMariahAnniversary.jpgMariah Carey and Nick Cannon celebrated their first anniversary with huge party at the Palms Resort Casino in Las Vegas last night.

The night started out with dinner for 50 family & friends at Simon at Palms Place.

There were candles set up on the tables and a sign that read "Happy Anniversary Mariah & Nick."

Guests enjoyed the surf & turf with sides of macaroni & cheese and mashed potatoes. For dessert everyone splurged on creme brulee and chocolate chip cookies.

The happy couple headed over to the packed Moon nightclub where a huge crowd cheered as a ginormous 5 tiered cake was rolled in and club goers toasted Mr. & Mrs. Cannon with flutes of champagne. Nick went to the DJ booth where he spun his favorite dance grooves.

"This is the most amazing person in the world," Nick told the crowd. "I dedicate my life to her daily, and together this union is going to last forever."

Nick surprised Mariah with with a video highlight reel of the couple's first year of marriage.

"Mariah just held on to Nick while the video played," a source tells X17online. "She seemed genuinely touched by it and you could see her wiping away tears as she watched."

Carey, who was dressed in a shimmery body-hugging silver and pink beaded dress, told the crowd: "I have the best man in the whole wide world."

Congrats to the happy couple!!!