Hilarity ensues when you replace the heads of pedestrians with celebrities. Made by Joel Strong, it started with well-timed photos of Leonardo DiCaprio on the heads of passersby and now it's grown to include a whole range of celebrities. You can check out more of his work here.

1.

2.

3.

4.

5.

6.

7.

8.

9.

10.

11.

12.

13.

14.

15.

16.

17.

18.

19.

20.

21.

22.

23.

24.

25.

26.

27.