Beyoncé, who turns 44 today, shares teen Blue Ivy and her twins Rumi and Sir Carter with her husband Jay-Z, all of whom have had their moments in the spotlight
Novak Djokovic shares his two children Tara, seven, and Stefan Djokovic, 10, with his wife since 2014, Jelena Djokovic, who was his high-school sweetheart
Mr. T is best known for his catchphrase "I Pity the Fool." Out of the ring, the retired professional wrestler raised three children, including his comedian daughter.