Rocker Sebastian Bach and his wife of 18 years are to divorce.
 
The Skid Row frontman has revealed he and Maria Bierk have been separated since April.
 
In a statement to TMZ.com, Bach says, "We have tried to work things out for the sake of our family, but it has become apparent that our differences at this point are irreconcilable. In 2011, we go our separate ways."
 
The couple has three children together - sons Paris, 21, and London 14, and daughter Sebastiana, three.