All Is Well: Beyoncé and JAY-Z Reunited With Kim and Kanye at Diddy's 50th Birthday Party

Diddy's 50th birthday party on Dec. 14 was quite the star-studded affair, with actors, musicians, and influencers making appearances for his big day. Among the guests were JAY-Z and Beyoncé, as well as Kim Kardashian and Kanye West, prompting a reunion between the two couples.

JAY-Z and Kanye used to be close friends and even collaborated on the 2011 album Watch the Throne, but their relationship has become strained in the years since. Their past grievances appeared to be behind them at Diddy's celebration, however, as they posed for photos together. JAY-Z also spent time chatting with Post Malone and Jaden Smith during the night, while Kim stayed tight with her sisters Khloé Kardashian and Kylie Jenner. Check out more photos of the stars who showed up for the birthday bash, and get details on Beyoncé's buzzy look.

Kanye West and JAY-Z at Diddy's 50th Birthday Party
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Kanye West and JAY-Z at Diddy's 50th Birthday Party

Regina King and Janelle Monáe at Diddy's 50th Birthday Party
Getty | Kevin Mazur

Regina King and Janelle Monáe at Diddy's 50th Birthday Party

Kim Kardashian, Khloé Kardashian, and Kylie Jenner at Diddy's 50th Birthday Party
Getty | Kevin Mazur

Kim Kardashian, Khloé Kardashian, and Kylie Jenner at Diddy's 50th Birthday Party

Cardi B and Offset at Diddy's 50th Birthday Party
Getty | Kevin Mazur

Cardi B and Offset at Diddy's 50th Birthday Party

Chadwick Boseman at Diddy's 50th Birthday Party
Getty | Kevin Mazur

Chadwick Boseman at Diddy's 50th Birthday Party

Kevin Hart and Eniko Parrish at Diddy's 50th Birthday Party
Getty | Kevin Mazur

Kevin Hart and Eniko Parrish at Diddy's 50th Birthday Party

Kanye West and Kim Kardashian at Diddy's 50th Birthday Party
Getty | Kevin Mazur

Kanye West and Kim Kardashian at Diddy's 50th Birthday Party

Corey Gamble and Kris Jenner at Diddy's 50th Birthday Party
Getty | Kevin Mazur

Corey Gamble and Kris Jenner at Diddy's 50th Birthday Party

Pharrell Williams, Kanye West, and JAY-Z at Diddy's 50th Birthday Party
Getty | Kevin Mazur

Pharrell Williams, Kanye West, and JAY-Z at Diddy's 50th Birthday Party

Dr. Dre and Jonathan Cheban at Diddy's 50th Birthday Party
Getty | Kevin Mazur

Dr. Dre and Jonathan Cheban at Diddy's 50th Birthday Party

Paris Hilton at Diddy's 50th Birthday Party
Getty | Kevin Mazur

Paris Hilton at Diddy's 50th Birthday Party

Machine Gun Kelly and G-Eazy at Diddy's 50th Birthday Party
Getty | Kevin Mazur

Machine Gun Kelly and G-Eazy at Diddy's 50th Birthday Party

June Ambrose, Chris Ivery, and Ellen Pompeo at Diddy's 50th Birthday Party
Getty | Kevin Mazur

June Ambrose, Chris Ivery, and Ellen Pompeo at Diddy's 50th Birthday Party

Jermaine Dupri, Usher, and Richie Akiva at Diddy's 50th Birthday Party
Getty | Kevin Mazur

Jermaine Dupri, Usher, and Richie Akiva at Diddy's 50th Birthday Party

Kate Beckinsale at Diddy's 50th Birthday Party
Getty | Kevin Mazur

Kate Beckinsale at Diddy's 50th Birthday Party

Khloé Kardashian and Kylie Jenner at Diddy's 50th Birthday Party
Getty | Kevin Mazur

Khloé Kardashian and Kylie Jenner at Diddy's 50th Birthday Party

Fatima Robinson and Fergie at Diddy's 50th Birthday Party
Getty | Kevin Mazur

Fatima Robinson and Fergie at Diddy's 50th Birthday Party

Jhené Aiko and Big Sean at Diddy's 50th Birthday Party
Getty | Kevin Mazur

Jhené Aiko and Big Sean at Diddy's 50th Birthday Party

The Weeknd and Swizz Beatz at Diddy's 50th Birthday Party
Getty | Kevin Mazur

The Weeknd and Swizz Beatz at Diddy's 50th Birthday Party

JAY-Z and Beyoncé at Diddy's 50th Birthday Party
Getty | Kevin Mazur

JAY-Z and Beyoncé at Diddy's 50th Birthday Party