BOISE -- The 4th annual Boise Music Festival is rocking the Expo Idaho on Saturday.
Organizers are expecting tens of thousands of people in the span of the all-day concert, even though a couple headliner acts had to pull out.
One of those acts was the band Hinder. They got in a serious bus accident, which sent some people to the hospital.
Peak Broadcasting says they'll miss them, but it won't completely flatten the concert.
"The couple people that I've talked to, about Hinder specifically, really wanted to see them, totally understood with the bus accident that they had, but were excited to see Jason DeRulo or Vanilla Ice or Carly Rae Jepsen," Kevin Godwin, Senior VP of Peak Broadcasting in Boise. "So, I think those things happen, and they're out of everyone's control, and that's why we bring in six or seven main stage acts."
The concert runs until about 10 p.m. Saturday night.