Lyrics for I Thought I Knew It All by Electra Mustaine. Electra Mustaine I Thought I Knew It All Tour 2016 - YouTube Somewhere there's a reason why some... Somewhere there's a reason why things go like they do. Watch the video for I Thought I Knew It All from Electra Mustaine's I Thought I Knew It All for free, and see the artwork, lyrics and similar artists. Somewhere there's a reason why things go like they do.