1/5 Mariah and Beyoncé posed backstage with their kids after at New York City's Beacon Theatre. Photo: Instagram/@mariahcarey 2/5 Mariah said she and Beyoncé are good friends. Photo: Instagram/@mariahcarey 3/5 Mariah said her children got along "great" with Beyoncé's daughter. Photo: Instagram/@mariahcarey 4/5 Mariah shares twins Monroe and Moroccan with Nick Cannon. Photo: Instagram/@mariahcarey 5/5 Beyonce and Jay Z's four-year-old daughter Blue Ivy is no stranger to backstage hangs. Photo: Instagram/@beyonce © ¡HOLA! Prohibida la reproducción total o parcial de este reportaje y sus fotografías, aun citando su procedencia. Más sobre: Celebrity Parents Mariah Carey Beyonce Más noticias sobre Celebrity Parents El hijo de Justin Timberlake, Silas, hace una rara aparición en el PGA golf tour Serena Williams reveals her mom’s amazing parenting advice Roselyn Sánchez and husband Eric Winter's little girl has some big news to share Alex Rodriguez celebrates daughter Ella’s 9th birthday with amazing pool party