Now this is a reason to celebrate!
Pink welcomed her second child — a baby boy named Jameson Moon Hart — with husband Carey Hart in December, and the new mom-of-two found the perfect way to celebrate big sister Willow Sage.
To keep her firstborn included in the festivities and the arrival of her little brother, the 37-year-old threw her daughter a "Big Sister Party."
The star shared a sweet snapshot of herself and her two little ones at the party, showing five-year-old Willow with her cake that reads, "Congrats Big Sis!"
The party included plenty of pink and teal balloons and the growing family looked happy as can be as they marked the special occasion.
While the singer kept her pregnancy quiet until late November, she's been sharing adorable photos of her two little ones since Jameson's arrival.
Two weeks ago, the mom-of-two shared a photo of Willow and Jameson cuddling together as the proud big sister embraced her little brother in the hospital room.
"Happy New Year #newlove #newlife #newenergy #newhope #newday the harts thank you for your love and we send it back to you in spades," she wrote on Instagram.
While she recently celebrated her 10-year anniversary with Carey, the star could not help but gush over her longtime love and father of her kids.
"He always falls asleep putting Willow to bed," she told Ellen DeGeneres last year. "The other night I said, 'Are you going to stay up tonight?' and he said, 'I would like to.' So I lit the candles, opened the bottle of wine and an hour and a half later... But I'm caught up on Homeland, so we're good."
(Photo Credit: Getty Images)
"He's an incredible dad," she added. "That's why he falls asleep, because she wants him to stay."
And if the star's wishes come true, there may be more babies on the way. In 2014, she revealed that she'd love to have five kids, so could there be another pregnancy announcement in the near future?