Madonna: Motherhood is 'hard work'

The 'Give Me All Your Luvin' singer Madonna - who is currently dating dancer Brahim Zaibat - has admitted that being a single mother "hard work".

The pop legend, who has four kids, Lourdes, 15, Rocco, 12, David, six, and five-year-old Mercy, admits juggling raising them and maintaining her busy career can be difficult.