Beyonce's record label has expressed concern that her new album '4' may not match the success of its predecessors, according to reports.
Bosses at Columbia Records are apparently worried that her fourth album, released earlier this month, does not contain enough hit singles.
The New York Post reports that the label asked Beyonce to make changes to the album but she denied.
The label is also apparently in discussions to reunite the singer's former group Destiny’s Child, although member Kelly Rowland is not thought to be interested.
“Beyoncé's career has stalled a bit,” a source said. “Columbia seems to think they can get some mileage out of a comeback record with all of the girls.”
Beyonce will headline this weekend's Glastonbury festival along with Coldplay and U2.
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