It's that time of the year again - time for an Aamir Khan film. Mr Perfectionist is back with a bang and a new look in his upcoming film PK. The actor is probably Bollywood's answer to Tamil superstar Kamal Haasan, in terms of re-inventing his look in films.
Like Mr Haasan, the PK star has a chameleon-like tendency to look different and fresh in his films. The previews, trailers and songs of PK have already created curiosity among his fans and colleagues, with special focus on his eccentric look in the film.
Aamir rejected at least five hair styles in pursuit of the perfect look for PK. From "boyish" to "weird" to "warrior", Aamir tried them all. (Also Read: How Aamir Khan Got the Perfect Look For PK)
But that is not new for Aamir; the actor is known for dedicating time to create the perfect look in all his films. And that gives us a diverse range of looks from Aamir Khan's 26 years in Bollywood.
Here's a definitive run-through of Aamir's changing appearance in his films over the decades:
Qayamat Se Qayamat Tak
In his breakthrough film Qayamat Se Qayamat TakDil, Andaaz Apna Apna, Dil Hai Ki Manta Nahin, Jo Jeeta Wohi Sikander Qayamat Se Qayamat TakRangeela
After multiple hits in which he looked similar came Aamir's RangeelataporiGhulam
In GhulambeediAati Kya KhandalaLagaan
Aamir experimented with his look somewhat in films like EarthMelaLagaandhotikundalDil Chahta Hai
In the wake of Lagaan followed whispers - could Aamir reinvent himself after the grand success of the film? He could, it seemed. At 36, Aamir was cast in the role of a young man in his 20s making the transition from college to entrepreneurship in filmmaker Farhan Akhtar's Dil Chahta HaiMangal Pandey: The Rising 
Enter Aamir Khan as freedom fighter Mandal Pandey, in long curly locks and sleek handlebar moustache. Aamir, who played the role of one of the precursors of the Indian freedom movement, was seen in the uniform worn by the Indian soldiers of the time in the East India Company army. Out of uniform, he was spotted in a villager's attire comprising dhoti-kurtaRang De Basanti
In Rakeysh Omprakash Mehra's film, Aamir played the role of a DU alumnus who hangs out with other university students and finds himself caught in events that radicalises them. Now in his early 40s, Aamir had to play a character half his age and he did it well again.
Taare Zameen Par
How do you make a teacher look cool? Answer: A Mohawk hairstyle and endearing attitude. Aamir Khan as a youthful art teacher in Taare Zameen ParGhajini
As a revenge-driven passionate lover, Aamir Khan surprised his fans with an extreme crew cut revealing the ghastly scars of a past attack. Aamir also worked on his body and beefed up to achieve a never-seen-before new look. Again, Aamir's Ghajini3 Idiots
It seemed like Aamir Khan just couldn't age, at least on-screen. At 45, Aamir had no qualms in playing the role of college student and 3 IdiotsTalaash: The Answer Lies Within
In the Reema Kagti film, Aamir Khan plays the role of a driven cop on a mission to uncover a mysterious truth. Aamir opted for short hairdo and thick moustache to go with the khakiDhoom: 3
In his last Bollywood outing, Aamir Khan was seen in a double role and here again, he devoted his energies to creating a character that looked unique. For months, he wasn't seen off set without the bowler hat his character Sahir wears in the film. A sleeveless high-necked jacket topped his outfit - that is, when he wasn't atop a bike in leather jacket and helmet.
PK
In his new release, Aamir's look and costumes (and lack of one too) have generated a lot of interest. And yet it is unclear who his character PKbandwalaPKPK
