Singers on Instagram: "“Best Day of My Life” by American Authors is an uplifting indie rock anthem that was released in 2013 as the lead single from their debut album, Oh, What a Life. With its catchy melody, energetic instrumentals, and optimistic lyrics, the song quickly became a feel-good favorite. It conveys a sense of excitement, adventure, and positivity, encouraging listeners to embrace every moment as if it’s the best day ever. The song achieved commercial success, reaching #14 on the Bi