In the Glee 'Mash-Up' episode, Finn chooses football practice over Glee. He is torn between his love for football and his passion for singing, ultimately deciding to prioritize his commitment to the football team. This creates tension between him and his fellow Glee Club members, who feel abandoned by their star quarterback. Finn later realizes the importance of balancing his interests and returns to Glee Club, proving that it is possible to pursue multiple passions.