The MTV Video Music Awards put some serious star power up front and at the show's end Sunday night, first blasting audiences with a star-studded opening medley including Ariana Grande, Jessie J, and Nicki Minaj, and closing with a crowd-pleasing medley from Beyonce that included her husband Jay Z and toddler daughter, Blue Ivy.Queen Bey and familyBeyonce was the night's leading nominee, with eight