Michael Bublé has a clear answer for what he would perform if Taylor Swift and Travis Kelce ever asked him to sing at their wedding. During a recent interview, the singer said he would choose L.O.V.E., the Nat King Cole standard, as his pick for the couple’s big day. It is a fitting choice for Bublé, whose career has long centered on romantic standards, jazz-pop arrangements, and timeless love songs. The comment adds to the growing list of artis…