Pop artists Cheryl Cole, Take That and N-Dubz are set to appear at the Royal Variety Performance next month.
Comedian John Bishop and tenor Russell Watson will also perform for the Prince of Wales and the Duchess of Cornwall at the London Palladium on 9 December.
Comedian Michael McIntyre said he was "unbelievably excited" to be the host.
It was "a dream come true", he added, to be introducing the likes of Take That, Cole and "Prince Charles's own personal booking, N-Dubz."
The London outfit are one of the hottest acts on the UK pop scene and won a Mobo award last month for best song.
Earlier this year band member Dappy apologised for sending threatening text messages to a Radio 1 listener who criticised his group.
Other highlights of the show, to be broadcast on the BBC next month, include a medley of songs performed by the cast of West End musical Les Miserables.
Over the Rainbow winner Danielle Hope will also sing ahead of her West End debut in The Wizard of Oz, which opens at the Palladium in February.
Watson will perform Parla Piu Piano, best known as the love theme from The Godfather, while the Chelsea Pensioners will give a rendition of If You Were the Only Girl (in the World).
Take That will treat fans to two songs, while Cole will sing a track from her second solo album.