Harder, Better, Faster, Stronger - Alive Radio Edit 2007

Much of the Discovery album is rooted in the '70s, but with a synth-pop beat and electronic vocals. On this track, Daft Punk sample the 1979 song "Cola Bottle Baby" by Edwin Birdsong. They also appropriate a famous line from the '70s TV show The Six Million Dollar Man, which states in the intro, "We can rebuild him... better, stronger, faster."

Kanye West sampled this for his 2007 song "Stronger." West paid homage to Daft Punk by including their characters (they dress in robotic costumes) in the video for his song, and having the duo perform with him at the 2008 Grammy Awards.

The music video features Japanese animation and was directed by Kazuhisa Takenouchi. It was later used as part of the movie Interstella 5555: The 5tory of the 5ecret 5tar 5ystem, which is a Japanese film based on the Discovery album.