Kathy Najimy is getting into the baby act - she's expecting a daughter on Christmas Day.

The baby is the first for Najimy, 35, and for her companion, 26-year-old actor Dan Finnerty, said spokesman Stephen Huvane.Najimy, who played a plump singing nun in "Sister Act," has shed nearly 150 pounds during the past few years, her spokesman said.

The actress, who also writes and directs, is providing the voice for a character for an upcoming Fox animated TV series, "King of the Hill."