Usher has an "incredible" relationship with his ex-wife.

The 'OMG' hitmaker - who split from spouse Tameka Foster in 2009 after two years of marriage - says the former couple have agreed to remain friends for the sake of their children, two-year-old Usher V, and 23-month-old Naviyd, and now get along better than ever.

He told Britain's Cosmopolitan magazine: "We have an incredible relationship. We keep it very positive and we encourage each other.

"I think that's a matter of hurt. The more each person is hurt, the more difficult it is to find the positive.

"But you have to remember why you got together in the first place.

"You just have to understand and help each other. With my ex-wife there was a lot of pressure in our relationship because of my career.

"Now that's alleviated, we're friends and make smart decisions for our children."

Just as his children are his motivation to have "incredible" relationship with his former spouse, Usher insists parenthood has given him a bigger purpose in life.

The 32-year-old pop star said: "I love being a dad. It makes me who I am, it gives my job purpose. What matters and what's made a difference in my life is my children. I'm enjoying every minute."