Jake Owen is in surgery on his injured hand -- a result of his go-kart accident over the holiday weekend. 

He checked in on Twitter to say that he was trying to avoid going under the knife, but decided to get it done since his career depends on playing guitar. But he promises that he won't miss his any shows -- including his opening spot on Jason Aldean's Night Train tour stop in Boston this weekend. 

He tweeted, "There's no way I'd miss the chance to play @countryconcert [in Fort Loramie, Ohio] or Fenway Park this weekend. I won't let y'all down.

Jake was taken to the ER when he crashed his go-kart racing NASCAR drivers Kevin Harvick and Clint Bowyer.