Official blog announcement: http://www.utadahikaru.jp/from-hikki/both/
She wrote in her blog that she is getting remarry to an Italian man who is not in the entertainment industry. The guy is described as a good guy, who is loved by many of her friends. The wedding will be soon [rumors online say May in Italy but I didn't see it any articles]. She initially wanted to announce after the wedding but since rumors are coming out, she wanted to share the good news. Thinking of the timing and of her mom's recent death, she thinks that her mom would approve and be happy for her.