Mariah Carey & Nick Cannon -- Oscars 2010 Red Carpet

Precious actress Mariah Carey arrives at the 2010 Oscars held at the Kodak Theatre on Sunday (March 7) in Hollywood.

The 39-year-old singer/actress wore a navy Valentino gown to the evening’s festivities. She talked about getting ready for the night, saying, “I could do my own hair and makeup because I’m a beauty school dropout but I don’t!” Nick added, “I get ready in the last five minutes!”

FYI: Mariah is sporting an H.Stern Top Floral collection bracelet in 18K white gold with diamonds worth $720,000!

15+ pictures inside of Mariah Carey and Nick Cannon at the 2010 Oscars…