Leave it to our #BabyBump inspo Geri Horner (formerly Halliwell) 鈥 one of the five original members of the Spice Girls (now GEM), whose core message, of course, was all about girl power 鈥 to give birth to her second child on the most empowering day for females this year .

LONDON, UNITED KINGDOM - NOVEMBER 28: Geri Horner & Christian Horner seen attending the World Film Premiere of I Am Bolt, held at Odeon Leicester Square, on November 28, 2016 in London, England. PHOTOGRAPH BY Brett Cove / Barcroft Images London-T:+44 207 033 1031 E:hello@barcroftmedia.com - New York-T:+1 212 796 2458 E:hello@barcroftusa.com - New Delhi-T:+91 11 4053 2429 E:hello@barcroftindia.com www.barcroftimages.com (Photo credit should read Brett Cove / Barcroft Images / Barcroft Media via Getty Images)

As the rest of us either joined the Women鈥檚 March or tuned in live (are you watching? SO INSPIRED!), Geri was notably absent 鈥 perhaps because she was busy, recovering from childbirth.

Uploading a glimpse of her new 7lb., 8oz. arrival to Instagram, she wrote, 鈥淢ontague George Hector Horner arrived this morning, a beautiful little brother for Bluebell and Olivia.鈥

Though it wasn鈥檛 a little girl she gave birth to today, we can鈥檛 help but smile at the significance of the fact that a woman who championed the very ideals we鈥檙e celebrating today exhibited the power of our gender by bringing new life into the world.

Even better? It also happens to be the birthday of another girl power champ 鈥 Geri鈥檚 bandmate, Miss Emma Bunton, who turns 41 today!

Happy birthday @emmaleebunton ! 馃帀鉂わ笍

A post shared by Geri Horner 馃尰 (@therealgerihalliwell) on

Geri, along with Mel. C, made sure to wish her a happy one, posting this amazing throwback to her page.

Congratulations, Geri (and happy birthday, Emma!) 鈥 LONG LIVE GIRL POWER!

Are you in love with Geri鈥檚 literary baby name? Share @BritandCo.

(h/t E!, photos via Anthony Harvey + Brett Cove/Barcroft Media/Getty)