MIA_houseofhollanddress.jpgShe caused a riot last Sunday in that House of Holland dress at the Grammys (pictured right), in which she performed I might add.

But now M.I.A. has a real reason to smile, after giving birth to a baby boy on Wednesday.

The British singer announced the news on her MySpace page, saying that he is "healthy, fine, beautiful and the most amazing thing ever on this planet."

M.I.A., whose real name is Mathangi "Maya" Arulpragasam, joins the baby's father, musician Benjamin Brewer, in welcoming their first child.

A representative for the couple said that they have declined to release the baby's name.