Fleetwood Mac [ tickets ] is expected return to the stage tonight (5/20) in Oakland, CA, after postponing a handful of shows over the past week due to illness.

As previously reported, the classic rockers canceled two shows in Canada last week--Tuesday night (5/12) in Calgary and Wednesday (5/13) in Edmonton--due to a band member falling ill.

The Stevie Nicks-led group managed to perform last Friday night (5/15) in Vancouver, though Monday night's (5/18) show at Sacramento's Arco Arena was also postponed due to illness. According to the venue's website, a rescheduled date will be announced soon, and tickets for the original performance will be honored on the new date.

Fleetwood Mac's greatest-hits trek, dubbed the "Unleashed Tour," is set to run through early summer, finishing up June 17 in Uncasville, CT. The band's classic 1977 album, "Rumors," was re-issued as part of a special CD/DVD boxed set on Reprise Records in conjunction with the in-progress US tour.