London, Feb 07 : American pop singer and songwriter Christina Aguilera may have shed her pregnancy weight, but she has still managed to retain her fuller cleavage.

She was seen showing off her cleavage while promoting her Back To Basics DVD in Hollywood.

It is her first public appearance after giving birth to son Max Liron last month, and recently she and her music producer husband Jordan Bratman held a party to celebrate Max's circumcision.

Aguilera is herself a Catholic, but has adopted all the customs and holidays of her hubby's religion. "I'm not Jewish, my husband's Jewish. I never really knew a lot of Jewish people growing up either, so I really had no idea about the bris and all the Jewish holidays," the Sun quoted her as saying.

"It's all a learning process for me. It was a very sweet experience - we had a lot of close friends come over and experience the bris with us," she said.

"We're such a non-conventional couple, we had a lot of penis balloons everywhere," she added.

ANI