Do it yourself (DIY) is a term used to describe building, modifying, or repairing of something without the aid of experts or professionals. The phrase "do it yourself" came into common usage in the 1950s in reference to home improvement projects which people might choose to complete independently.

In recent years, the term DIY has taken on a broader meaning that covers a wide range of skill sets. DIY is associated with the international alternative rock, punk rock, and indie rock music scenes; indymedia networks, pirate radio stations, and the zine community. In this context, DIY is related to the Arts and Crafts movement, in that it offers an alternative to modern consumer culture's emphasis on relying on others to satisfy needs. The abbreviation DIY is also widely used in the military as a way to teach commanders (hence how from this YouTube videoclip) or other types of units to take responsibility, so that they'd be able to do things themselves just as a preparation for their own future.

"Do It" is a popsong by Canadian recording artist Nelly Furtado for her third album, Loose (2006). It was produced by Timbaland and Nate "Danja" Hills. It features a prominent influence of 1980s dance-pop music and sexually suggestive lyrics, in which the song's protagonist asks a lover to satisfy her physically.

Alongside a remix featuring rapper Missy Elliott, the song was released as the fifth single from Loose in North America in mid-2007, and Furtado co-directed the accompanying music video. "Do It" reached the top twenty in Canada and was a number-one club hit in the United States, where it became Furtado's lowest peaking single on the Billboard Hot 100; it reached higher positions on charts on mainland Europe.

In January 2007, it was revealed that Timbaland plagiarized the synth line in "Do It" from an earlier track by Finnish demoscener Janne Suni—for more information, see 2007 Timbaland plagiarism controversy.

Furtado has credited the influence of 1980s musicians such as Blondie, Madonna, The Police, Prince and Talking Heads on Loose, saying that the album's creative team "were picking up on some of the more surreal, theatrical elements of '80s music, the stuff that puts you in sort of a dream state. There's a mysterious, after-midnight vibe to this album that's extremely visceral. I want people to escape into the music and indulge their most animalistic impulses." Referring to the sexually suggestive lyrics in "Do It" and other songs on Loose, Furtado cited the influence of what she described as "the assertive female sexuality of '90s hip-hop, from Queen Latifah to MC Lyte, Yo-Yo, Salt-N-Pepa, TLC. They were sexy, smart and creative—strong women in control. That's what I like about the sexual content on Loose: It's very organic."