Defeater have dropped off The Wonder Years' upcoming tour due to vocalist's Derek's hip condition. They've been replaced by Fireworks. View a message from Defeater below

Hey all, we have some bad news with a silver lining.

Derek's doctors and surgeons have strongly recommended that he get his hip taken care of as soon as possible before it breaks in its brittle state and causes further damage.

The bad news is that we are unfortunately going to have to drop from The Wonder Years tour. Bummed doesn't even begin to describe how upset we are that we are missing such an awesome opportunity.

However the good news is that not only will Derek be able to take the time he needs to go to physical therapy and heal properly, but our spot will be filled by the excellent band Fireworks.

We are already planning a full North American run for this fall where we promise to make up for lost time.

Thanks guys, we love you.