pink112110_01_baby.jpgPink, 31, gave birth to a daughter Thursday in LA -- Willow Sage Hart -- she announced on Twitter.

"We are ecstatic to welcome our new beautiful healthy happy baby girl, Willow Sage Hart. She's gorgeous, just like her daddy [Carey Hart]. #beyondblessed"

On Wednesday, Pink Tweeted a hint that something big might be coming ... writing: "New Moon in Gemini today :) a good time to start something new....Also called the Honey Moon. #intoit"

Pink (nee Alecia Beth Moore) and hubby, motocross biker Carey Hart, 35, announced the singer's pregnancy in November after receiving a congratulatory Tweet from a friend. Pink later told Ellen DeGeneres on her show, "I didn't want to talk about it because I was just really nervous and I have had a miscarriage before."

In November, Pink released her Greatest Hits...So Far album, which included a song dedicated to her baby. She explained the significant of the track "F***ing Perfect" on Twitter, ": "I have a life inside of me, and I want her or him to know that I will accept him or her with open and loving and welcoming arms. And though I will prepare this little munchkin for a sometimes cruel world, I will also equip this kid to see all the beauty in it as well."