Melissa Etheridge in Child Custody Battle

Singer and ex grappling over twins, property

melissa etheridge broadway new york city
Henry S. Dziekan III/Getty Images
Melissa Etheridge attends the Broadway opening night of 'The House of Blue Leaves' in New York City.
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Singer Melissa Etheridge and her ex-partner, Tammy Lynn Michaels, are battling over custody of their twins, division of property, child and spousal support, and visitation rights.

The Grammy-winning Etheridge, 50, and Michaels, 36, were together nine years before their breakup last year. Michaels gave birth to the couple's four-year-old twins, Miller and Rose, using an anonymous sperm donor. 

Among other disputes, Etheridge is reportedly claiming that the couple's marriage vows in 2003 were non-binding. 

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