Most of you probably know about Katy Perry's "I Kissed a Girl" song. Despite the repulsive subject matter of kissing girls, I really liked the song. But my lesbian sister impressed upon me how bigoted the song is, since the song has a line how "It's not what good girls do//Not how they should behave." The line seems to suggest girls should not do same-sex kissing.
If you actually consider the lyrics, however, the lines immediately preceding the offensive content say, "No I don't even know your name//It doesn't matter//You're my experimental game//Just human nature." The natural language interpretation suggests that the "it" in "It's not what good girls do" line refers to "experiment[ing]" with people whose "name [you] don't know." While I'd disagree that it's immoral to experiment with total strangers, it's not bigoted to think otherwise.
Perry's other song "You're So Gay" is an entirely different matter, of course