madonna-and-mercy-jamesThe 55-year-old singer, along with family and close friends, celebrated her daughter Mercy‘s 8th birthday on Saturday, according to E! News.

Madonna, her sons Rocco and David, her daughter Lourdes, a few adult supervisors, several nannies and about fifteen of Mercy’s friends enjoyed a private pizza party at Serafina restaurant in New York City.

“Mercy was clearly having a ball,” an eyewitness dished about the adorable 8-year-old.  “She was wearing a fancy little embellished dress with a white fur jacket. She and her friends were very giggly.”

The group feasted on a variety of pies and Madonna treated herself to the restaurant’s signature Tartufo Nero pizza, which has potatoes, robiola cheese and black truffles.

After eating birthday cake, Mercy who was adopted at age 3, stood next to her mother while she opened her presents and held them up so that the whole group could see the goodies.

“Mercy and her friends were especially giddy towards the end,” the eyewitness added. “While waiting in line for the restroom they could be heard singing Miley Cyrus‘ ‘Wrecking Ball’ at the top of their lungs. It was actually super cute.”

Madonna & Mercy James pictured a few years back