It's official. Miranda Cosgrove won't be able to reschedule her concert set for Friday in Kennewick, according to Marc Solferino with Riverfront Concerts.

Cosgrove's tour bus was involved in an accident last week in the Midwest, and as a result, the iCarly star suffered a severe ankle injury and had to cancel the rest of her summer tour dates on the recommendation of her doctor, Solferino said.

Riverfront Concerts will begin processing refunds immediately, he said.

"We will ... send all ticket purchasers a refund check," Solferino said.