Paris Hilton has announced her baby boy's unique name. Paris, who recently celebrated her 42nd birthday, welcomed her first child via surrogate last month with her husband Carter Reum, but failed to share the tot's moniker until now.Teasing her new memoir that's set to hit shelves next month, Paris said in an audio clip of her podcast while reading out a snippet of the book: "We plan to name him Phoenix. A name that I decided on years ago when I was searching cities, countries and states on a map.