Celebrity

The celebratory gathering in Napa, California is also attended by Kris Jenner, Keith Urban, Paula Abdul, and Randy Jackson.

• Mar 2, 2015

AceShowbiz - Ryan Seacrest celebrated his birthday with a number of his A-list pals Saturday, February 28 in Napa Valley, California. The "American Idol" presenter actually turned 40 in December but he waited two months to invite his friends for a big bash.

Kim Kardashian was among the guests. She was joined by sister Khloe Kardashian and momager Kris Jenner. Other attendees included former "Idol" judges Paula Abdul and Randy Jackson as well as current one Keith Urban.

The Kardashian sisters posted a series of pictures on Instagram. "Happy Birthday @RyanSeacrest Love you," Kim wrote in one image. "why is your party in February when your actual bday is in December? LOL." She captioned another pic, "Why are all of pics blurry from last night lol #TooMuchFun #RyansBday."

Happy Birthday @RyanSeacrest Love you 🎉🎂🎈 (why is your party in February when your actual bday is in December? LOL)

A photo posted by Kim Kardashian West (@kimkardashian) on Mar 1, 2015 at 1:10am PST

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Why are all of pics blurry from last night lol #TooMuchFun #RyansBday @khloekardashian @randyjackson @therealpaulaabdul

A photo posted by Kim Kardashian West (@kimkardashian) on Mar 1, 2015 at 8:43am PST