Happy Birthday! Inside Alicia Keys' 'House Party' Pajama Jam

Alicia Keys got the surprise of her life over the weekend when hubby Swizz Beatz threw a House Party-themed pajama jam to celebrate her 34th birthday. Some of our favorite celebs (including the original House Party cast!) showed up and showed out with their PJ's, 90's gear, and old school dance moves.

Jolie A. Doggett Jan, 26, 2015

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"Thank you soooo much my love for loving me on a whole other stratosphere #mygreatestinspiration!!!" the birthday girl wrote on her Instagram page.

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House Party stars Tisha Campbell and AJ Johnson stopped by to help Swizz Beatz set the scene.

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House Party star Aj Johnson was having a hard time keeping the birthday party a secret. "It has KILLED me to keep it quiet!" she wrote.

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The cast of House Party reunited for the first time in years to celebrate Alicia Keys' birthday. "So understand....We haven't been together since the premier of #HOUSEPARTY the reunion while we waited to surprise @aliciakeys @therealswizzz was AWESOME!" an excited AJ Johnson wrote on Instagram.

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Angie Martinez, Gayle King and Lala were in the building!

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Gayle King enjoyed the birthday festivities as well. "Birthday girl @aliciakeys having the best time ever at her own party. ! @itskidnplay on stage and the crowd went craaaazy !" she wrote on Instagram.

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"A few reasons why I never stopped dancing!" Lala wrote on her Instagram

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"Shoutout to my sister @lala for winning the best PJ contest for the lady's last night @aliciakeys House party Jam," wrote the night's party planner, Swizz Beatz.