Fans will flock to KeyBank Center on Sunday night for the highly anticipated Jonas Brothers concert, but not everything is going according to plan.

BUFFALO, N.Y. — Fans will flock to KeyBank Center on Sunday night for the highly anticipated Jonas Brothers concert.

But the opening act, The All-American Rejects, will not be performing as planned.

“Due to needed vocal rest, The All-American Rejects have announced they will be stepping away from the remainder of the Jonas Brothers tour, including tonight’s concert,” KeyBank Center announced on social media hours before the show.

RELATED: These concerts are coming to Western New York in 2025

This “Jonas20: Living The Dream” tour was announced back in March. They’ve been joined at various times on tour by Marshmello, The All-American Rejects, and Boys Like Girls as special guests in select cities.