Ashlee and Fall Out Boy bassist Pete filed for divorce this Febraury, citing "irreconcilable differences" as the reason.
In a statement, the pair said:
"After careful consideration, we have made the difficult decision to file for divorce.
"We ask that everyone honour our privacy as we navigate this next phase of our lives."
The couple began dating in 2006 and announced their engagement in April 2008. They married one month later and their son, Bronx Mowgli, was born that November.