Billy Ray Cyrus doesn't have a beef with his 15-year-old daughter Miley dating 20-year-old aspiring musician Justin Gaston. "He actually reminds me a lot of myself when I was 20-years-old and I was living and searching for the dream," Billy Ray tells Access Hollywood of the model (and former Nashville Star contestant). "He's got a great heart and soul, and a lot of determination," Billy Ray added. "I think that's the true measure of a man, is when you measure his heart."That, or the measurement of his International Jock thong! While we can't blame Miley for wooing Gaston, we do have to question a certain level of age-appropriate behavior — after all, what 15-year-old teen queen would invite the 46-year-old Steve Carell to her birthday party? He's married, Miley — hands off!