Academy Award winner Sofia Coppola and Phoenix frontman Thomas Mars welcomed their second daughter, Cosima, in New York City Friday. Little Cosima joins big sister Romy, born in 2007. Coppola won the Best Screenplay Oscar for Lost in Translation.

The pair have been dating for the past four years.

SEE ALSO:   Paris Hilton Hires Mr. T For Nicky Hilton Birthday Party