Alpha Dog?

Justin Timberlake... Alpha Dog... Is it just me or does anyone else have a problem putting those two terms together? I mean, can a chihuahua qualify as an "alpha dog?" Case in point, apparently some of the tats they used to try to thug up Justin mean "ice skating" in Chinese. Great. That's real Gangsta. As the man(?) himself once sang, "Don't fear me baby, its just Justin."