Washington, Mar 30 : Pop star Christina Aguilera thrilled blogger Perez Hilton on his 31st birthday party by crooning a special birthday song to him.

The 'Oh Mother' hitmaker recreated Marilyn Monroe's 'Happy Birthday Mr. President' for the celebrity blogger on his birthday party.

Aguilera's performance of 'Happy birthday, Mr. Per-ez-ident' was seen by celebrities like the Jonas Brothers and Paris Hilton.

The blogger received champagne from Zac Efron and a signed guitar from the Jonas Brothers, who raced to his 31st party from the Kids' Choice Awards, where they were named Favourite Music Group. (ANI)