But then Jay Z joined Beyoncé and Solange for the party!

This image appears in the gallery:
43 Pictures You Might Have Missed This Week (14th April)

1. 
2. 
3. 
4. 
5. 
6. 
7. 
8. 
9. 

10. 43 images

See the full gallery: 43 Pictures You Might Have Missed This Week (14th April)