Songfacts®:

• Duct tape is a strong, durable tape that is very useful for putting broken things back together (our old Chevette was held together by duct tape). Thus, a "Duct Tape Heart" is one that has been broken, but still works because it's been repaired with the miracle adhesive. The Barenaked Ladies make it clear that their heart can't be broken, since they have plenty of duct tape on hand to fix it.
• Ed Robertson of Barenaked Ladies wrote this song with Kevin Griffin, frontman for Better Than Ezra. They also co-wrote the lead track from Silverball, "Get Back Up," and collaborated on three songs from the previous Barenaked Ladies album, Grinning Streak.
• After Kevin Griffin came up with the title to this song, he looked up the duct tape entry on Wikipedia, which described it as, "polyethylene-coated pressure-sensitive tape." He decided to use that line in the bridge, and Robertson loved it.
• Duct tape was famously used in 1972 when the astronauts Gene Cernan and Jack Schmitt landed their Challenger module near the Sea of Serenity on the moon. When their moonbuggy lost a fender, Cernan put it back on with duct tape - they had a roll under the seat. This improvised repair was crucial, since the fender kept moondust off the rover. This incident inspired the line in the song, "Fixed the fender on the rover that was left on the moon."
  
  Ed Robertson is friends with a famous fellow Canadian: astronaut Chris Hadfield. They wrote a song together called "Jewel in the Night" that Hadfield played while orbiting the International Space Station. "A really awesome moment for me was when Chris Hadfield dropped by the studio and we were working on this track," Robertson said. "I was wondering if he's pick up on the line in the bridge where I say, 'Fixed the fender on the rover that was left on the moon.' I just sort of glanced a Chris and I saw his eyes light up. He said, 'I know the guy who fixed the fender on the rover on the moon with duct tape. Great line.'"
• Something you should know: If you're looking to tape a duct, don't use duct tape. For actual duct taping, look for aluminum foil tape.