"The Met Gala's" fashion extravaganza takes over New York City! How Lady Gaga pulled off four looks in one and Katy Perry's transformation from wearing a chandelier to becoming a cheeseburger? And, we're running down all the most memorable styles and star couples who rocked the red carpet. Plus, what Jennifer Lopez and Alex Rodriguez told us about their wedding plans. Then, ET takes you inside the after parties and the special performance that made one star go wild. Plus, meet the new host "who?s a little bit Country" joining the ladies at "The Talk." Entertainment Begins and Ends with ET.