One of the major themes in Pride and Prejudice is that of pride. Specifically, Darcy is accused of being overly proud. While it is true that at first he believes himself to be above his company in the country, he later shows that his own pride in his character and principles are actually not improper at all. As Elizabeth proclaims to her father after Darcy asks Mr. Bennet permission to marry her, "Indeed he has no improper pride. He is perfectly amiable" (Ch. 59). However, Darcy himself also confesses to being raised with "good principles but left to follow them in pride and conceit," referring to his inclination to look down on others (Ch. 58). Since pride is such a dominant theme, especially with respect to Darcy, one applicable song could be "Good Man Feeling Bad" by Tom Cochrane. Lyrics that particularly reflect Darcy's actions and feelings towards Elizabeth are
I'm so vain
I'm sometimes so weak
I didn't mean to hurt you
Sometimes I just don't think enough
Also, lyrics specifically addressing pride are, "I don't want to conquer no worlds / Just live in your world with pride."