"I don't mean this in a stuck-up way, but I needed an attitude song"

When Gwen Stefani states "I don't imply this in a stuck-up way, however I required an attitude song," she is expressing that she required a song that would provide her a boost of confidence and help her confront the obstacles she was facing with a strong and assertive mindset. Gwen Stefani is understood for her strong and fearless personality, and her music typically shows her attitude and method to life. In this quote, she is acknowledging that she needs an additional push to keep her vibrant and confident attitude, and that she is trying to find a song that will assist her do so.