Lots of people make the case that Shawn Mendes is the first "music star" to come from Vine. Well, the same could also be said for Us The Duo since they have more followers (4 mil to 3 mil) and more loops by about a 2-1 margin. Then there's this major-label clip taken from the new animated film,The Book Of Life, out this weekend (of Oct. 17). And if that weren't enough, this song was written as the couple's wedding vows. Right now, Michael and Carissa have the edge, Shawn; your move, buddy.
P.S. That Karmin couple may want to look over their shoulders, too.