Help with this riddle?

Title is : What's missing?
Link to image:
http://d.yimg.com/hd/answers/i/cb75adde78ed4d4dbd49deaefa0eff9e_A.png?a=answers&mr=0&x=1385272775&s=6af03460090859f56dc91b0cf97cb3a3

Hints: The song matches one item in the picture.
Think punny and don't forget one of your
clue places!

You don't need to use all your clues, but make sure to know them.
It might require Google for outside knowledge.
Song is the Chinese national anthem : March of the Volunteers
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My ideas: I think it has to do with countries because of China and Turkey but I can't figure out the missing one...