Liberty X admitted that whenever they have an afternoon off work they try and go to places like Great Ormond Street Hospital to meet kids.
Chesney Hawkes said he was making a comeback after being a teen star more than 10 years ago.
He's been working behind the scenes in the pop industry and has decided to return to what he loves doing most - playing live music.
Also performing at the festival were newcomers to the boy band pop scene - Reel. They're an Irish band who supported Westlife last year.
The play over 20 Celtic instruments between them and have been together for two and a half years.
They have a new single out next week called You Take Me Away.