Def Leppard, Hozier and James Taylor will also headline at the three-weekend bash along Lake Michigan.
Here are all the best photos from Summerfest, which took over Milwaukee, Wisc.
The famed festival claims a new event from the Minnesota Twins — set for this weekend with concerts by Imagine Dragons and The Killers — is creating "public confusion."
Eric Church (with Elle King), the Zac Brown Band (with Marcus King) and James Taylor & His All-Star Band (with Sheryl Crow) headlined weekend one.
55th anniversary edition to also feature headliners Odesza and James Taylor and his all-star band.
