Beyonce, Jay Z to document marriage problems?

Singer Beyonce Knowles and her husband-rapper Jay Z will reportedly detail their recent marriage difficulties on their upcoming album.

The couple's marriage was rumoured to be on the rocks during their recent 'On the Run' joint tour. They are now returning to the recording studio together and intend to make "raw and honest" music that will lay bare their difficulties, reports contactmusic.com.

"The horrible time they've had this past year will be documented in every lyric to every single song," said a source.

"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," added the source.

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 earlier this month.