British singer M.I.A., who performed at the Grammy Awards ceremony on her delivery due date, has given birth to a boy, an entertainment Web site says.

The HitFix entertainment news Web site was the first to report Friday that the 21-year-old singer had given birth Thursday but that details about her baby's health and gender were not revealed.

There also was no news regarding M.I.A.'s scheduled appearance at the Feb. 22 Academy Awards, the Los Angeles Times noted.

The "Kala" musician is to perform at the annual awards event as part of her "Slumdog Millionaire" soundtrack collaboration with A.R. Rahman. The pair's soundtrack song, "O Saya," is nominated for best original soundtrack song along with fellow "Slumdog" hit "Jai Ho" and the "Wall-E" hit "Down to Earth," the Times said.