London, June 17
Pop star Britney Spears, who is in London for her Circus tour, took a day off to take her sons to the zoo.
The singer enjoyed her visit with sons Sean Preston (3) and Jayden James (2) with ex-husband Kevin Federline, reported thesun.co.uk
Spears has hired Federline as a nanny for their sons and is paying him $5,000 per week for baby sitting.
Spears is currently performing at the Britain leg of her tour at London's O2 Arena.