Legendary rock band Fleetwood Mac has postponed its concert in Calgary at the last minute.

The event was to take place at the Pengrowth Saddledome Tuesday night.

But late Tuesday afternoon, organizers with Live Nation confirmed that the show was being cancelled due to an illness.

"We're really pretty disappointed because we're big Stevie Nicks fans," says Sherry Lescure.

Lescure is such a huge fan of the group that her daughter Rumour is named after a Fleetwood Mac album and her other daughter Rhiannon is named after one of the band's songs.

Live Nation says a rescheduled date will be announced soon and previously purchased tickets will be honoured.

Refunds will be issued to anyone who can't make the rescheduled date.

Wednesday night's Fleetwood Mac concert in Edmonton has also been postponed.