Congratulations to Geri Halliwell, aka Ginger Spice, on the birth of her second child!  This is her first child with husband Christian Horner.

The Spice Girls singer, 44, took to Twitter today to announce the news.

Her new baby boy is joined by big sister Bluebell Madonna, Geri's 10-year-old daughter with ex Sacha Gervasi, and Olivia, Christian's daughter with his ex, Beverley Allen, as reported by E! News.

The name of the baby has not been announced.

Halliwell's new baby was born on the same day as the birthday of fellow Spice Girl Emma Bunton, aka Baby Spice.  Bunton turns 41 today and took to Twitter to share her excitement for Halliwell.

Congratulations to the happy family!