Pink and Carey Hart have separated

The former couple - who have daughter Willow Sage, 14, and son Jameson Moon, nine - have so far remained tight-lipped about their current relationship status. But a source close to the situation has confirmed to People that they've split.

The celebrity duo got engaged back in 2005, after meeting at the 2001 Summer X Games in Philadelphia. Pink and Carey married in Costa Rica in January 2006, but the couple separated two years later.

They confirmed their reconciliation in the spring of 2009, after calling off their divorce.

Carey told People at the time: "We're rebuilding.

"Sometimes you have to take a couple of steps backwards to move forward."

Pink also revealed that therapy had played a big role in their reconciliation.

The pop star admitted that they needed to "fix the problems" before reuniting.

Pink - whose real name is Alecia Moore - told People: "Long-term relationships are not easy.

"It is much easier to stay in the solid days and jump from relationship to relationship, because then you don't have to fix the problems that keep recurring. You have to end up fixing yourself; you can't fix the other person. So it can be challenging, and there's good days and there's bad days."

The singer also revealed that she readjusted her expectations ahead of reuniting with Carey.

Pink stressed at the time that she didn't want to "break up [her] family".

She said: "I think it's an impossible expectation for you to think that you're going to evolve at exactly the same pace as another person in exactly the same direction. So it takes work to redefine what's important.

"I don't want to break up my family. That's been my main goal, since I had a broken family. Sometimes you have to let it go. You can't die on every mountain."