Singer Kelis has accused her former husband and hip-hop artiste Nas of mentally and physically abusing her during their marriage. The former couple got married in 2005 and divorced in 2010. The Milkshake singer has said she made the decision to leave him while she was pregnant with their now-eight-year-old son, Knight, because she didn't want to bring her child into the alleged abusive environment, reports aceshowbiz.com.

"There was a lot of mental and physical abuse. An intense low... we had a lot," she told HollywoodUnlocked.com. She added: "It was really dark. A lot of drinking. A lot of mental and physical abuse and it got to the point where if I wasn't pregnant, I might have stayed with him. I was pregnant and it was a mess and I felt like I wasn't going to bring a child into this."