2015 has claimed another celebrity couple break up, as actors Jon Hamm and Jennifer Westfeldt have split after 18 years of dating.

In a joint statement released to People, the couple state: "With great sadness, we have decided to separate, after 18 years of love and shared history. We will continue to be supportive of each other in every way possible moving forward."

The 44-year-old actor is best known for his role as Don Draper in the television series Mad Men, which concluded this year after seven years on the air.

Westfeldt got her big break in the critically-acclaimed 2001 film Kissing Jessica Stein. She wrote, directed and co-starred in the 2011 movie Friends With Kids, which also featured Hamm.

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