Taylor Swift's "Speak Now" tour dresses are on display at the Country Music Hall of Fame and Museum in Nashville, Tenn. "I'm so glad that this tour is something that people are going to remember…it's really exciting," Swift told Katie Couric. See more with Swift on "All Access Nashville with Katie Couric," a special edition of "20/20," Friday at 9 p.m. ET.

Swift wore a golden Valentino ball gown to perform a show-stopping stunt – singing "Love Story" from a balcony that, thanks to some show business magic, appeared to float high above her audience during the concert. "It would just take off and I'd be flying above the crowd…It would be so much fun," Swift said. "I think for me the thrill of it was knowing that the crowd didn't expect it."

Costumes worn by dancers during the performance of "Love Story."

Seen here are dancers' costumes – including a bridal gown and bridesmaids dresses – and a purple halter dress worn by Swift while she played acoustic sets with a ukulele and a guitar. "I'd walk all the way through the crowd to get to this tree stage…so that everyone at some point in the show would get a front row seat," Swift said.

Dancers wore wedding-themed costumes when Swift performed "Speak Now," a song about interrupting a wedding. "The idea was I would show up and do this dance thing on top of the stage and steal the groom and run through the crowd to the next stage. So it was so theatrical and fun every night," Swift said.

Swift wore a red, sequined Jenny Packham slip dress while performing "Better Than Revenge." Swift said that costume changes during the show could be tricky. "Sometimes a snap would come unsnapped and it would just be hanging there and well I couldn't really do anything... It's a live show."

Swift wore a black Jenny Packham flapper-style slip dress with rhinestone embellishments and black knee-high leather boots to sing "Long Live." Also pictured is her "sparkle" guitar encrusted with Swarovski crystals.

Costumes worn by dancers during Swift's performance of "Enchanted." See Katie Couric's interview with Taylor Swift on "All Access Nashville with Katie Couric," a special edition of "20/20," Friday at 9 p.m. ET.

Watch "All Access Nashville With Katie Couric," a special edition of "20/20," Friday at 9 p.m. ET.