Hat
The hat represents authority and power. Because it covers the head, the hat contains thought; therefore, if it is changed, an opinion is changed. The covered head shows nobility, and different hats signify different orders within the social hierarchy. Removal of a hat upon entry into a building shows respect. Information taken from: Online Symbolism Dictionary
A role one plays. Changing hats denotes change of attitude. From - Dream Dictionary.
Songs referenced:
Rattlesnakes