Music
Rex Features
The X Factor winner and the Welsh solo star are the latest acts to be linked to the bill for the former South African president's celebrations.
According to The Sun, other acts playing the show will include Razorlight, Eminem, Queen, Sugababes, Jamelia, Keane and Amy Winehouse.
Tickets for the gig will be sold via an online registration system and will cost £65. Fans will be able to register from the beginning of next week.
It was reported earlier this year that Will Smith and wife Jada Pinkett Smith would host the summer bash.
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