And that was the moment I knew. Ooh, I knew. Ooh, You called me later, And said, "I'm sorry, I didn't make it," And I said, "I'm sorry too," And that was the moment I knew. Writer/s: TAYLOR SWIFT Publisher: Sony/ATV Music Publishing LLC Lyrics licensed and provided by LyricFind. Oct 22, · In an interview with Yahoo Music, Swift told us a little about the song: ‘The Moment I Knew’ was a song about my 21st birthday party, which was the worst experience ever. Oct 22, · The Moment I Knew is the 17th track on Taylor Swift's 4th studio album and the 1st track on the 2nd CD in the physical copy of the deluxe edition of Red. So far, it is the only song from the deluxe edition to be released on iTunes.