The music industry's finest were in tune with their partners as they hit the red carpet Sunday night for the Grammy Awards. Some were paired up with fellow music makers, like Faith Hill and Tim McGraw, while other musicians had nonindustry insiders along for the date night, including John Legend, who had the support of swimsuit-model fiancée Chrissy Teigen. And of course, a very sexy Jennifer Lopez had her dancer and love Casper Smart by her side. There were even double dates, like between audience neighbors Justin Timberlake, Jessica Biel, Beyoncé, and Jay-Z. See the cutest couple moments at the 55th annual Grammys now!