Jessica Simpson has said she is definitely going to marry her fiance of three years in 2014.

The star, 33, told Good Morning America that she feels like part of an "old married couple" already.

Jessica, who has a six-month-old son and 20-month-old daughter with former NFL player Eric Johnson, said: "We don't have an actual date but we do know that we want it to be this year.

"We need to get married," she added.

"I already feel we're like an old married couple already. If he wanted to run, he could have run when I was hormonal and pregnant."

The singer, actress and Weight Watchers spokeswoman said that she wanted her daughter to look up to her when she is older.

"I don't want to give her any false perception of what is real and what's important. It is important to really know yourself and love yourself," she said.