and have celebrated their second anniversary by renewing their wedding vows once again. The couple who got married in 2008 held a small, private party to celebrate their special day on Friday, April 30 at their Beverly Hills home. Sharing her happiness, Mariah tweeted, "So last night's wedding vow renewal&small party was a SG..too many cameras(from close&far!)but it was beautiful. NC is the best: )"