The chorus of Morse's at-bat song -- Take On Me by A-ha—notably became a favorite for Nationals fans to sign along to. So much so that it was played after the Take Me Out to the Ballgame during the seventh-inning stretch for the first half of 2013, even though Morse was no longer on the team. Morse would continue to use this song when playing for subsequent teams. The song has been played during the seventh-inning stretch on several occasions when Morse returned to Nationals Park as either a visiting player or special guest (including when Morse threw out the first pitch and was guest of honor at Game 5 of the 2017 NLDS versus the Chicago Cubs).