The festival takes place in Quex Park on Saturday 27 and Sunday 28.
Plan B will be supported by Rita Ora and James Arthur on the Saturday, while Jessie J gets Lawson and Union J on the Sunday.
Wouldn't it would be great to get the opinion of a concert spokesperson?
Well here's your friend and ours Dion Clements with some words, one of which is "artistes": "Plan B and Jessie are both in such demand we’re thrilled they’re coming to headline the Sound Island Festival this year, it’s a great coup for fans of the artistes and Sound Island audiences in general."
"With guest appearances by Rita Ora, James Arthur, Lawson, Union J, and of course with more details of additional performers to be announced, Sound Island Festival 2013 is set to be the biggest and best yet!"
Even better than last year? SAY IT ISN'T SO!
There's more information on it all here.