Washington, Feb. 10 -- Singer-songwriter Shania Twain recalled her performance during the Super Bowl XXXVII halftime show in 2003.

"That was a really exciting moment," recalled Twain, adding, "I think I was quite numb. I can remember feeling a little like I was in a tunnel or something. It was such an overwhelming and chaotic environment around me, " reported People.

Sharing that "the whole stage had to be put out there in a matter of minutes," the star continued, "Everybody had to be transported out there in this big convoy -- the band, technicians, instruments, everything -- in a very short period, so we had to rehearse the timing of it more than we rehearsed the music because it's live TV time. It's got to be exactly on cue and every...