Former Idol winner Carrie Underwood has just released a new music video for her third single, "Last Name," and let's just say it tells quite the story. Set up as the prequel to the car-smashing "Before He Cheats," this video shows the 25-year-old boozin' it up with her girls in Vegas, only to tie the knot with some manwhore she just met with an Elvis impersonator conducing the ceremony. Damn that Cuervo!