Sarah McLachlan, Husband Split

Sarah McLachlan and her husband of 11 years, drummer Ashwin Sood, have hit a low note.

The singer, 40, revealed they have called it quits while promoting her upcoming greatest hits album Closer: The Best of Sarah McLachlan (out October 7).

"I'm separating from my husband, so these are the songs about that," she told Billboard.com, referring to her two new tunes, "U Want Me 2" and "Don't Give Up on Us."

McLachlan and Sood, who plays drums in her band, have two daughters, Ann Sushil, 6, and Taja Summer, 14 months.

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"I wasn't planning on saying anything," McLachlan said of the split, "but it's gonna come out at some point. I haven't said anything about it because I've been terrified to, but I figure … there's no good time to say it, so I just said it."

She said "U Want Me 2" is "about that really uncertain, confusing place at the end of a relationship when there's no communication or closure, everything's still up in the air and there's a lot of anger and sadness. It's sort of that working through 'How do we move forward … with some dignity and grace.'"

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"Don't Give Up," she added, is "pretty self-explanatory, basically just a plea to give it another chance and keep trying."

McLachlan called the split "pretty gross" but did not elaborate.

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