Christina AguileraChristina Aguilera and husband Jordan Bratman celebrated their son Max’s bris ceremony over the weekend.

The traditional Jewish naming and circumsion ceremony usually takes place on the eighth day after the birth of the child and is observed by family and friends, then followed by a celebratory meal.

Max Liron Bratman, who was born on 12th January at Cedars-Sinai Medical Center, is also said to have celebrated the day with a new outfit: Christina was spotted dropping into Beverly Hills boutique Kitson last week to pick up an baby grow, long-sleeved t-shirt and socks - all covered in little monkeys - for her first born.