Gone Girl star Rosamund Pike has given birth to a baby boy, a brother to her two-year-old son Solo. 

The new arrival is the British actress' second child with her partner of five years, Robie Uniacke. Mathematical researcher Uniacke, 54, has four other children from two previous marriages.

The bundle of joy is unnamed as of yet, and we can't wait to hear what name the couple pick. Perhaps, as the daughter of Opera singers, Pike will continue in the same vein – baby Duet?  

Picture credit: Rex