Taylor Swift appeared on NBC’s Tonight Show Starring Jimmy Fallon and Late Night With Seth Meyers on Thursday (November 11th) to promote the release of Red (Taylor’s Version). She talked about the project, including never-heard-before songs, and she shared the story of why “All Too Well” is actually 10 minutes long.

She also talks about how her cryptic Easter eggs originated from her first album and how they transformed her and her fans into super sleuths. She confirms the “All Too Well” short film is full of them.

Taylor and Jimmy take turns trying to stump each other about what items are hidden inside their mystery boxes in the segment “Box of Lies.”

On Late Night With Seth Meyers, she explains why she’s re-recording her albums, reuniting with her band, wanting to own her own music and experiencing nostalgia with her fans for her album Red (Taylor’s Version).