The 38-year-old singer, who is pregnant with her first child with her actor husband Josh Duhamel, has filed documents in Los Angeles requesting to officially change her name, reported TMZ online.
The star, who has been married for more than four years, wants to change her name in order to 'conform to the first name which she is commonly and professionally known as, and has been for many years.'
In order for the court to grant her request, the singer must publish a notice about her new name in a local newspaper for four consecutive weeks.