"Life Is a Highway" is a song by Canadian musician Tom Cochrane from his second studio album, Mad Mad World (1991). The song became a number-one hit in Canada in late 1991. "Life Is a Highway" also peaked at number six on the US Billboard Hot 100 chart in August 1992 and reached the top three in Australia and New Zealand the same year. The song was covered by Chris LeDoux for his 1998 album One Road Man and Rascal Flatts for the Cars soundtrack.

Cochrane has stated that "Life Is a Highway" was originally conceived in the 1980s as "Love is a Highway" while he was still a member of Red Rider, but was shelved at that time because he felt the unfinished song was unusable.^[2] Following a trip with his family to Eastern Africa with the World Vision famine relief organization, Cochrane revisited the song on the advice of his friend John Webster, an instrumentalist on the Mad Mad World album. In a 2017 interview with The Canadian Press to mark the song's 25th anniversary, Cochrane said Webster encouraged him to revisit the demo recording, which at that point only had mumbled vocals and improvised lyrics, but not the song's well-known chorus. "(The song) became a pep talk to myself... saying you can't really control all of this stuff, you just do the best you can," he says.^[2] Cochrane says he was trying to make sense of the poverty he witnessed on his trip, which he found "shocking and traumatic".

Eventually, the original demo version was released on the 25th-anniversary reissue of Mad Mad World under the original title "Love is a Highway". He later said the uptempo spirit of the song came from looking for something positive to "hang the experience on."^[2] Most of the vocals on the track were recorded in Cochrane's small home studio.^[2] The song was Cochrane's only top-40 hit in the United States, reaching number six on the Billboard Hot 100.^[3] In Canada, the song stayed at number one for two weeks, and three other singles from the album charted within the top 10; "No Regrets" peaked at number three,^[4] "Sinking Like a Sunset" reached number two,^[5] and "Washed Away" climbed to number seven.^[6] In Australia and New Zealand, the single peaked at number two in both countries.^[7][8] Elsewhere, it became a top-40 hit in Germany, the Netherlands, and Sweden.^[9][10][11]

The video for "Life Is a Highway" was directed by David Storey and produced by Albert Botha, who went on to be the line producer on two films for Saturday Night Live: Superstar starring Molly Shannon and The Ladies Man starring Tim Meadows. The video was shot in Alberta's Badlands, near the town of Drumheller. Many of the shots are in familiar locations along the Dinosaur Trail, including Cochrane playing guitar amid the Hoodoos and the couple, Kait Shane and Brennan Elliott, running around the car while it rides the Bleriot Ferry across the Red Deer River. It also features an older man (gas station attendant), a couple (tall man, short wife), two women (Jacqueline and Joyce Robbins) from an Anabaptist religious order (Alberta has a population of Hutterites), and two First Nations men, one wearing a baseball cap with the words "Oka Standoff" printed on it, referring to the Oka Crisis (a land dispute between a group of Mohawk people and the town of Oka, Quebec). The car featured in the music video is a 1965 Chevrolet Impala Super Sport.

7-inch, cassette, and mini-CD single^[12][13][14]

1. "Life Is a Highway" – 4:24
2. "Emotional Truth" – 5:59

UK CD single^[15]

1. "Life Is a Highway" – 4:24
2. "Emotional Truth" – 5:59
3. "Get Back Up" – 4:39

European maxi-CD single^[16]

1. "Life Is a Highway" – 4:24
2. "Emotional Truth" – 5:59
3. "Lunatic Fringe" (live) – 5:00

In 1998, Chris LeDoux covered "Life Is a Highway" for his album One Road Man. Changes include the intro, timing of vocal entrances on the chorus, and location names between the first and second chorus. LeDoux's version was released as a single the following year and peaked at number 64 on the Billboard Hot Country Songs chart during the week of June 12, 1999, and remained at the spot for nine weeks.

In 2005, American country band Rascal Flatts recorded a cover of the song for the Pixar animated film Cars, which was released on June 9, 2006. The song sold a large quantity of digital downloads, leading to a number seven peak on the Billboard Hot 100 (one position lower than Cochrane's original version). In addition, the cover was placed as a bonus track on later versions of the album Me and My Gang, and also was included on Greatest Hits Volume 1 and Twenty Years of Rascal Flatts: The Greatest Hits. This version also won the "Favorite Song from a Movie" award at the 33rd People's Choice Awards.

The instrumental of the Rascal Flatts' cover version was prominently featured in the Top Gear: US Special, which aired February 11, 2007. The song is included on the soundtrack for Lego Rock Band. It topped the two million mark in paid downloads as of the chart dated March 28, 2009.^[33] As of March 2013, the song has sold over three million copies in the US.^[34] On July 14, 2015, Scott Walker, Republican Governor of Wisconsin, launched his presidential campaign as Republican Party nominee in Waukesha, Wisconsin using the song. On December 8, 2020, Harmonix announced that the cover will be featured on the video game, FUSER, as a DLC on December 10, 2020.