Showbiz
Rex Features
The couple were joined by close friends and family in the Egyptian resort of Hurghada, where the celebrations were held.
"We're going to have a long, beautiful, lovely marriage until we die," Brown said in her speech, reported in OK!
The four-day extravaganza is rumoured to also involve a luxury boat trip on the Red Sea, an "outrageously fun treasure hunt" and five-star dining.
The former Spice Girl married Belafonte last year in a low-key ceremony in Las Vegas.
Former Spice Girl bandmates were not invited to the event, but sent "messages of love and support".
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