Dave Haywood, Hillary Scott and Charles Kelley (L-R) of country music band Lady Antebellum arrive at the 2011 Billboard Music Awards show in Las Vegas May 22, 2011.[Photo/Agencies]

TOLEDO - Lady Antebellum has announced the sudden postponement of an Ohio concert due to a death in the family.

The country music trio says on its website that band member Hillary Scott's grandmother has died, so the Grammy-winning group won't perform as scheduled Friday night at the Toledo Zoo Amphitheatre.

The sold-out show has been rescheduled for Aug. 10.

Lady Antebellum says it still plans to appear Saturday night at a music festival in Sarnia, in the Canadian province of Ontario.