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Mandy Moore and Ryan Adams are parting ways.

After more than five-and-a-half years of marriage, the 30-year-old singer-actress and her 40-year-old rock star husband have filed for divorce, ET can confirm.

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"Ryan Adams and Mandy Moore have mutually decided to end their marriage of almost 6 years," the couple's reps said in a joint statement to ET. "It is a respectful, amicable parting of ways. Both Ryan and Mandy ask that the media respect their privacy at this time."

Moore, whose recent credits include "Tangled" and "Red Band Society," and Adams began dating in 2008 before getting engaged in February 2009. They married a month later on March 10, 2009 in Savannah, Ga.

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This was the first marriage for both.