TMZ.com is reporting that former "Baywatch" beauty Donna D'Errico has filed for divorce from MÖTLEY CRÜE bassist Nikki Sixx after nine years of marriage.D'Errico is claiming irreconcilable differences and is seeking physical custody of their 5 year-old daughter Frankie-Jean and her 13 year-old son Rhyan from a previous relationship. D'Errico is requesting that the court give joint legal custody with child visitation to Sixx, and that spousal support and attorney fees be paid by Sixx as well. Download a copy of the actual court document filed by D'Errico at this location (PDF file). It is the most recent high-profile celebrity rock star marriage bust-up following on the heels of Heather Locklear filing for divorce from BON JOVI's Richie Sambora. Locklear, of course, was also married to Tommy Lee, of MÖTLEY CRÜE fame. D'Errico's other credits include the TV show "Reno 911!" as well as the movies "Austin Powers in Goldmember" and "Kiss the Bride". The couple separated after four years of marriage but D'Errico returned to the rocker after he completed a stint in rehab.