Complex sentence: "Best Day of My Life" is a song written by Zac Barnett, Dave Rublin, Matt Sanchez and James Adam Shelley of the American indie rock band American Authors, with writers Aaron Accetta and Michael Goodman.
Split into simpler sentences: Best Day of My Life is a song by the American indie rock band American Authors. The song was written by band members Zac Barnett, Dave Rublin, Matt Sanchez, James Adam Shelley and writers Aaron Accetta and Michael Goodman.