Aguilera and Lewis to appear at Jackson concert

Leona Lewis, Cee-Lo Green and Christina Aguilera are the first artists confirmed at a Michael Jackson tribute concert later this year.

Alien Ant Farm - the band which covered 'Smooth Criminal' in 2001 - will play too.

The concert will take place at Cardiff's Millennium Stadium in October.

It is backed by Jackson's mother, but has been criticised by brothers Jermaine and Randy.