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Rob Zombie is offering another apology after cutting his show at Rock Fest short this past weekend. 

The rocker reiterated in a post on Facebook that his voice was completely shot after just two songs at the Wisconsin event, and added a photo of his throat to show just what he's dealing with.  He says he would have kept going if there was any way he could, revealing that it was actually the first time in nearly three decades that he wasn't able to finish a concert. 

Zombie closed his statement by saying that he doesn't take his fans for granted and isn't taking this situation lightly.  His goal is to "never let the fans down," and he's very sorry that he did just that on Sunday night.  He adds that they're currently trying to figure out a time and place to make it up to everyone. 

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