Aamir Khan made his first on-screen appearance as a child artist in his uncle Nasir Hussain's film 'Yaadon Ki Baaraat' (1973), starring Dharmendra and Zeenat Aman. The actor, who turned 52 on Tuesday, first starred in a leading role in 'Qayamat Se Qayamat Tak' in 1988. Aamir is best known for his movies like 'Dangal', '3 Idiots', 'Rang De Basanti'.