Singer Beyonce Knowles and rapper-husband Jay Z are reportedly planning to part ways following the end of their joint "On The Run" world tour this September.

The couple are said to be working out a way to break-up without divorcing and have already removed their wedding rings, reports contactmusic.com.

"There are no rings, if you haven't noticed," Page Six quoted a source as saying.

"They are trying to figure out a way to split without divorcing. This is a huge concert tour and they've already gotten most of the money from the promoters up front,” the source added.

The source also added that the tour will be the last for Jay Z, 44, and Beyonce, 32, after marriage counsellors failed to help them get their relationship back on track.

It is believed the couple, who have a two-year-old daughter Blue Ivy, thought that having their first child would bring them closer again but they soon started to go their separate ways.

"For just a split moment, things got real for them and she was even talking about adding to the family. But, after a while, Jay was out doing Jay and Bey was out doing Bey.

"They made the classic mistake of thinking a child would change everything and help to rekindle the initial fire, and it didn't,” said the source.