“Beautiful” is one of the most recent ballads to appear on our list, and with good reason. Christina Aguilera, who has received her fare share of criticism, fired this ballad back at those who disagreed with her “edgier” career progression since her days on the Mickey Mouse club. Her response? It doesn’t matter what you say, this is who I am and I am confident in that. She was true to herself, and with this song she encouraged others to be comfortable with who they are even when it is difficult for others to relate to. Given how many teenagers feel like they are struggling with who they are, this is a message that is worthy of our list.

-S. Russ