It was fitting that the Corrs covered Fleetwood Mac's "Dreams" early in their show Wednesday night at Wolf Trap, since the Irish band fuses contemporary pop with earthier sounds in much the same way the Mac did during its commercial heyday. Of course, contemporary pop has gotten much slicker since "Rumours" ruled the charts, so Corrs songs like "Angel" have more in common with Shania Twain and Celine Dion than with Stevie Nicks.

It remains a bit of a mystery why the glamorous Corrs -- sisters Andrea (vocals), Sharon (violin) and Caroline (drums, but not with the band on the current tour) and their brother Jim (guitar) -- haven't duplicated their huge British success in the States. But not being household names didn't stop them from working the near-capacity crowd with the practiced skill of multiplatinum stars.

The show was designed as both new-album-promoter ("Borrowed Heaven" is their latest) and greatest-hits-overview, but the tossed-off Celtic flourishes from Sharon's violin and Andrea's pennywhistle kept things from feeling overly scripted.

Anyone who only knew the Corrs as a popular band of siblings from Ireland and turned up expecting something akin to the Clancy Brothers was in for a bit of a shock. With a slick backing band providing sympathetic settings, the most effective moments were those that contained no hint of the Emerald Isle: the ultra-frothy and catchy sweep of "Summer Sunshine" and a pulsating take on Ryan Adams's "When the Stars Go Blue." Both were good enough to win the Corrs at least a few new American converts.

-- Patrick Foster