LOS ANGELES — Beyonce and Jay Z have celebrated the impending birth of their twins with a star-studded baby shower.

A picture posted on the singer’s Instagram account Sunday shows Beyonce in a bikini top and an intricate design painted on her belly. A note on the photos says “The Carter Push Party” took place Saturday. Jay Z’s real name is Shawn Carter.

Guests included Serena Williams, who’s also pregnant, and La La Anthony. Kelly Rowland and Michelle Williams from Beyonce’s days with Destiny’s Child were also in attendance.

Beyonce and Jay Z have a 5-year-old daughter, Blue Ivy.