NEW YORK, NY - JULY 05: Actress Julia Stiles attends the AOL Build Speaker Series at AOL Studios in New York on July 5, 2016 in New York City. (Photo by Michael Loccisano/Getty Images)

Julia Stiles is a mom! The “Save the Last Dance” actress announced the birth of her first child with husband Preston J. Cook on Instagram Tuesday. The baby’s name is Strummer Newcomb Cook. See the new mama’s adorable post!