Mariah Carey topped a star-studded bill at the extravagant wedding
They topped a star-studded bill booked by Irene’s grandad, Russian businessman Valery Kogan, for the celebrations at London’s Landmark hotel.
Mariah, thought to charge £2.5million to perform, was flown in from the US at the young couple’s request.
She dedicated her 2005 love ballad We Belong Together to them.
Elton John kicked off the epic nine-hour show
Earlier, Sir Elton – who charges no less than £1million – kicked off the nine-hour celebrations with a 12-song set.
Irene wept with joy on her hubby’s shoulder on the dancefloor when the Crocodile Rock star dedicated his hit Tiny Dancer to her.
Sir Elton said: “This is for Irene.
“She’s not that tiny, but I know she’s a really good dancer because I can see her down there.”
Hollywood actor Antonio Banderas made a speech wishing the couple well.
There were also performances from a string of Russian stars, before producer Mark Ronson ended the evening with a DJ set.
/The Sun/
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