(CNN) You know your Kendrick Lamar from your Migos, your "Despacito" from your "That's What I Like." But we won't hold it against you if you don't have a clue what the difference is between Grammy's Song of the Year and Record of the Year categories. Well, here's some help, straight from the Grammy websiteSong of the Year: This award goes to the person who wrote the song. So while Bruno Mars may have sung a song, he wouldn't win it. The person who wrote it would.

Source: CNN January 29, 2018 13:51 UTC