Katy Perry will perform at the second pre-wedding celebration of the son of Asia's richest man on a cruise ship

The cruise ship carrying the second pre-wedding celebration of Asia's richest man's son Anant and his fiancee Radhika Merchant has sailed from Palermo. There are 800 guests and 600 staff on board the luxury cruise, The Sunday Times reports.

The liner will make several stops in famous European cities such as Rome, Cannes, and Portofino.

The theme of the cruise is “La vita è un viaggio” (life is a journey), the publication reports. This theme is also evident in all the Indian, Italian and French cuisine served on board, as well as planned events including a masquerade ball and a Roman toga party.

Guests and future newlyweds will be entertained by Katy Perry. The Sun reported that the 39-year-old singer will perform at the couple's masked ball in Cannes on Friday. The source said the cruise will dock in the southern French town before guests head to a "£40 million" estate for a "big party." “The party itself will only last five hours, but will be headlined by Katie and will feature a DJ as part of the top-notch entertainment.” “Guests will then see a huge fireworks display from a small armada of ships waiting in the Bay of Cannes.”

“When they say they haven’t skimped on expenses, they really mean it,” the source added.

Katy Perry will likely also receive a huge fee. According to Forbes, Rihanna, who sang several of her hits at the couple's first pre-wedding event, received £5 million for her performance.

It should be noted that on the day of departure the guests were entertained by the American group Backstreet Boys.

Ambani and Merchant are set to tie the knot in July.