JLS, Leona Lewis, Adam Lambert, Pixie Lott, Conor Maynard, StooShe, Diversity,Spelbound and special guests perform at the Rays of Sunshine Concert.

Tickets for the show on sale now.

The proceeds will go towards the Rays Of Sunshine Children's Charity, which grants wishes for seriously ill youngsters in the UK aged 3-18 years old.

The organization granted its first wish back in 2004 and has gone on to grant over 2,000 wishes, along with hosting a number of entertaining events and hospital activities.

Meanwhile, Adam Lambert will release his second album Trespassing in the UK on July 2. Leona Lewis is expected to release her third studio set later this year.