Def Leppard have postponed six shows on their current North American tour with Heart as the result of an unspecified family illness.

The affected dates start with last night's show (July 7) at Cincinnati's Riverbend Music Center and continue through a planned July 15 gig in Tinley Park, Ill. The rescheduled dates are as follows:

Cincinnati, Ohio -- July 7 July 27
Bristow, Va. -- July 9 July 31
Sartatoga Springs, N.Y. -- July 10 Aug. 2
Wantagh, N.Y. -- July 12 July 30
Holmdel, N.J. -- July 13 Aug. 3
Tinley Park, Ill. -- July 15 July 28

Tickets for the original shows will be honored on the newly scheduled dates, and Heart will still provide support at each of those gigs. Def Leppard's tour is now scheduled to resume July 17 in Candott, Wis. For the band's full itinerary, click here.

In other news, a vinyl edition of Def Leppard's new album, 'Mirror Ball: Live & More,' dropped earlier this week. Check out a visual presentation of the special packaging in the YouTube clip below:

Def Leppard 'Mirror Ball' Vinyl Release Presentation