This week, one of the biggest celebrity weddings will be taking place in Venice, Italy, when Amazon founder Jeff Bezos and Lauren Sánchez say their “I do’s.” And while many celebs like Oprah Winfrey and Kim Kardashian will be in attendance,

Katy Perry isn't able to celebrate Jeff Bezos and Lauren Sánchez's wedding in Venice. Though many feel the singer isn't attending amid her split from Orlando Bloom, a source tells PEOPLE that wasn't a factor in the decision.

Jeff Bezos’ fiancée Lauren Sánchez sent a special note to Katy Perry who is noticeably absent from her wedding festivities in Venice—where ex Orlando Bloom is among the guests—as she continues tour.