Oh, lay me to the rest with all of the other lambs, Access Hollywood is saying that Mariah Carey,38, is engaged to actor Nick Cannon,27 ! Can a church hold that much pink tafetta? You know her colors are blush and bashful and all the bridesmaids will carry music boxes playing "Vision of Love" and she will have a genetically engineered unicorn carry her ass to the altar. A source says ...