Spears, who is due to give birth later this month (SEPT05), is said to be determined her first child will be the most stylish tot in Hollywood and credits pal Madonna with persuading Versace to help out.
A source tells British newspaper The Sun, "Britney was over the moon when Donatella offered to make all of the kid's clothes.
"They have met a few times and mingle in the same circles but Britney never expected such a generous offer.
"Britney and Donatella have a mutual friend in Madonna and Britney was very impressed at how Madonna's daughter was kitted out.
"She is hoping that her own baby will be the trendiest since Madonna's own daughter LOURDES."