"6 Foot 7 Foot" is the first single off The Carter IV. The track is the first single Lil Wayne has recorded since his release from prison on November 4, 2010, though it's the second song on which he has appeared since his prison release, after the final version of Birdman's single "Fire Flame", on which he had 2 verses. In the original version of the single, Lil Wayne is absent due to his prison sentence. Before the song was officially released, Shade 45's DJ Drama interviewed Lil Wayne and he talked about the single. He said "It's a monster," and "Hopefully, it shows people where I'm at lyrically." Mack Maine, president of Young Money and fellow labelmate, called it "A Milli on steroids." The track was originally intended for rapper T.I., but the Atlantic records manager who also co-manages Lil Wayne, decided Lil Wayne would be a better fit, reuniting Lil Wayne and producer Bangladesh for the first time since "A Milli" after the royalty dispute between Bangladesh and Cash Money on that song. It is the second time the trio (Lil Wayne, Cory Gunz, Bangladesh) have worked together, after 2008's "A Milli" (though Cory Gunz was not on the final version of that song). Lil Wayne performed the song on Saturday Night Live and New Year's Eve with Carson Daly. He also performed it on 106 & Party Cash Money Young Money New Years.
On January 20, 2011 Lil Wayne announced that there would be a music video for the single in the upcoming spring. A picture was uploaded by Rap-Up of Lil Wayne portraying a boxer. Birdman as well as the Young Money crew (excluding Drake, Nicki Minaj, Tyga, Gudda Gudda and Mack Maine) make cameo appearances in the video. The video made premieres on MTV on March 3, 2011 and on BET's106 & Park on March 4, 2011. The video (directed by Hype Williams) was inspired by the film Inception, with Lil Wayne and the Young Money Crew portraying several scenarios from the film and consists of numerous scenes which visualize many of the metaphors and similes Wayne says in the song. The explicit version of the video has received 100 million views as of June 2016 on YouTube, while the clean version of the video has received above 3 million views.
It debuted at number 9 in the Billboard Hot 100 chart (week of January 1, 2011) and number 3 on the Digital Songs chart. The song sold over 3 million digital downloads in the U.S. as of January 2013.