Social media sends warm welcome to Serena Williams' new baby girl

Twitter was a bundle of joy Friday afternoon when news hit that Serena Williams had given birth to a baby girl.

Pardon Auntie Venus for not being among the first to welcome the new babe -- she was pretty much speechless when she walked onto Arthur Ashe Stadium minutes after word spread about her little sister and new niece.

A post shared by BeyoncΓ© (@beyonce) on

And that brings us to one question: What to get her?