As Britain celebrates the birth of the "Royal Baby" of Kate Middleton and Prince Williams, let's have a look at the celebrities who proudly flaunted their baby bumps. They showed the world how it feels to be a proud mother.

Kate Middleton

Much before the "Royal Baby" was born, the count down started across the globe. The Duchess of Cambridge, Kate Middleton, flaunted a growing belly on Feb 19, this year. It was at London Hope House where she spoke on how to overcome substance abuse.

Penelope Cruz

Cruz flaunted her massive baby bump when she attended the Los Veranos de la Villa Music Festival in Madrid on July 20. Javier Bardem joined his wife Penelope Cruz, 39, in the music festival. This is going to be the second child of the couple.

Shakira

Shakira had her child in January this year. The baby boy is named Milan. There were several artistic shots of the pregnant Shakira with Gerard Pique, her boyfriend. She also had a baby shower virtually with UNICEF.

Halle Berry

Berry is not among those pregnant ladies who hit the bed seeking rest. She'd rather prefer keeping up with her hectic schedule. She looked glamorous and glowing when we saw her in Brazil at the premiere of "The Call". Her body-hugging black dress showed her growing belly.

Hilary Duff

Duff revealed about her pregnancy news on "Ellen". She posted a cute holiday pic on Twitter in October. Duff welcomed her first child with Mike Comrie in March.