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Beyonce, Blue Ivy Carter

Beyonce.com

Clap your hands for Blue Ivy Carter!

Beyoncé & Jay Z threw their daughter a fairy-themed birthday party on Saturday, two days after she turned 4.

The bash was held at a private residence and was attended by fewer than 50 people, including the R&B singer's Destiny's Child BFF Kelly Rowland and rocker Chris Martin, a source told E! News exclusively.

The party featured a big birthday cake, ice cream, lots of more food and balloons, plus an entertainer who made balloon animals. There were also areas for kids to play with Barbies, Play-Doh and LEGOs, the source said. While the children played away, Bey and Jay spent much time laughing and acting affectionate towards one another. 

Kelly shares son 1-year-old son Titan with husband Tim Weatherspoon, while Martin and ex-wife Gwyneth Paltrow are parents to daughter Apple Martin, 11, and Moses, 9. It is unclear if the children attended Blue Ivy's party.

 Last year, Beyoncé & Jay Z celebrated Blue's third birthday with a kids' party as well, one that featured a big silver "3" balloon and ice sculpture that read, "Happy Birthday Blue."

For their little girl's second birthday, the family flew to Miami and rented out the local zoo.