Kylie Jenner, Oprah, Usher, More A-Listers En Route to Bezos-Sanchez Wedding

Kylie Jenner, Oprah, Usher and Bill Gates are ready to see some amore in Italy ... because they're piling into boats on the Venice canals en route to the wedding ceremony for Jeff Bezos and Lauren Sanchez. It's a who's who of Hollywood celebs and…