Dan + Shay invite concert attendees to House of Blues after Rascal Flats cancels show

SAN DIEGO -- To make up for a cancelled performance, Dan + Shay held a concert at the House of Blues Friday night.

The duo were set to open for Rascal Flats, but the country group cancelled their show hours before it was scheduled to begin.

Rascal Flats informed their fans on social media at 4:30 p.m., three hours before their scheduled showtime to say that they had to cancel due to a sick band member and that refunds were available.

Dan + Shay, still willing to perform announced they would hold a surprise show for fans. Tickets were available at a first come first serve basis.

Ticket refunds are available at the point of purchase, according to Live Nation Entertainment.