The song I used for this class is 'True Colors' by the cast of tv show 'Glee'.
I chose this version because the show 'Glee' is about the lives of teenagers. Students tend to get more engaged when they can relate to the content. The fact that this video shows a cast of diffrent races and almost equal numbers of boys and girls can also help the students understand the theme of the song, diverstiy. This song is perfect for chapter 5 'We are All Different' in 천재 textbook for 1st graders in a middle school.
A worksheet, PPT, and the video I made to explain the lyrics(mostly in Korean) can be found here.