The royal baby already has one playboy swooning.
"She is absolutely beautiful," Prince Harry said, via a Kensington Palace statement. "I can't wait to meet her."
RELATED: Kate's maternity style
"Harry was worried he would be asleep when the news broke, so he was really happy that he was up to take the call from William," a source told Us Weekly. The call came as Prince William sat in the Lindo Wing where Kate recovered from an relatively easy delivery.
RELATED: Celeb babies born in 2015 so far
And less than 10 hours later, Kate and Will debuted their little bundle of joy.
"Everything went extremely well," a source told PEOPLE of the super-smooth delivery.
Kate's a royal pro.