He's yet to be a father, but Mariah Carey has no doubts about her husband Nick Cannon’s potential parenting skills. “He’d be the best dad in the whole world!” the singer told In Touch at the UNICEF Snowflake Ball in New York. The couple, who wed in April 2008, certainly displayed their devotion to kids by supporting the international children’s charitable organization at the star-studded event. “We have to take care of children. Any time I can be a part of helping out, I’m here,” Mariah added.