Richard Dyer's theory holds that celebrities are constructed images meant to appeal to audiences, rather than reflections of real people. He believes stars can be placed in mainstream or subcultures depending on who their fans are, and that their public images can influence societal norms. Lady Gaga attracts fans through her unpredictable fashion sense and willingness to be herself unapologetically. McCracken's theory is that mainstream genres have fragmented, making it difficult to categorize artists into single genres today. Hebdige argues people relate more to artists from similar backgrounds. Adorno was critical of popular music that focused on materialism rather than meaningful issues.