Looks like Brooke knows best! Hulk Hogan's 25-year-old daughter is getting married! The former reality star broke the engagement news on her Instagram with proposal pics! She and her her fiance, Dallas Cowboys' Phil Costa were in Vegas Saturday night when he dropped down on one knee and popped the question. And you can see the shock and awe on Brooke's face as she looks at the ring! She said, Happiest moment of my life. I am marrying my best friend. I wouldn't choose anyone else. I am so lucky and so grateful.