In the song, “How Much a Dollar Cost” from Kendrick Lamar’s To Pimp a Butterfly, he tells a story about his refusing to give a dollar to a homeless man—only to find out the person he refused was God. And in a recent interview, President Barack Obama said the song is his favorite of 2015. He also named The Martian as his favorite movie and The Knick as his favorite TV show. For her part, Michelle Obama chose Mark Runson and Bruno Mars’ “Uptown Funk” as her favorite tune, Inside Out as her favorite movie and Black-ish as her favorite show.