To commemorate the jam’s 30th anniversary, this year’s festival will be spread across two nights at the U.S. Cellular Center. “This will only be the third time we’ve done that,” says Warren Haynes.
![](https://mountainx.com/wp-content/uploads/2018/11/Christmas-jam-330x247.png)
To commemorate the jam’s 30th anniversary, this year’s festival will be spread across two nights at the U.S. Cellular Center. “This will only be the third time we’ve done that,” says Warren Haynes.