Even though all eyes are expected to be on Jeff Bezos and Lauren Sánchez next weekend for their Venice, Italy wedding, the guest list is also sure to cause a stir.

Orlando Bloom is reportedly set to travel to Venice later this month for Jeff Bezos’ wedding to Lauren Sanchez without his fiancée, Katy Perry. TMZ reports sources as saying that Perry is unable to rearrange her tour dates and will be performing in Australia when her fellow space traveler Sanchez marries the billionaire Amazon founder.

A source previously told PEOPLE that Perry's stress over the reception of '143' had put a strain on their relationship