Beyonce and Jay Z will document their marriage problems in their new album.

The couple - whose recent 'On the Run' joint tour was dogged by rumours their union was on the rocks - are returning to the recording studio together and intend to make ''raw and honest'' music that will lay bare their difficulties.

A source told Britain's Grazia magazine: ''The horrible time they've had this past year will be documented in every lyric to every single song.

''It's going to be the most raw and honest thing they've ever done because they're determined to tell 'their own truth'.

''They want to show the world how they see it, from the inside, and in their own words.''

During their 'On the Run' tour, Beyonce fuelled speculation her husband had cheated on her when she cried on stage and changed the lyrics of 'Resentment', singing: ''She ain't even half of me. That bitch will never be me.''

Despite their reported problems, the couple - who have two-year-old daughter Blue Ivy together - are said to be working to put their marriage back on track and even renewed their wedding vows at the start of this month.