OK, so I might not be the biggest Jonas Brothers fan, after all. After the Billboard Music Awards [1], I'm pretty sure that title goes to the brothers' partners [2], Danielle Jonas, Sophie Turner, and Priyanka Chopra. During the band's electrifying performance [3] during the award show, the "J Sisters [4]" looked so proud as they danced and sang along to the set. Priyanka even sneaked in a kiss when Nick walked by [5] her in the crowd. Of course, the sweetest moment was at the end when the ladies cheered from the audience with huge smiles. I love this family! See the J Sisters' cute reactions ahead.