"Chalk Outline" is the lead single from Canadian rock band, Three Days Grace's fourth album, Transit of Venus. The band released many "snippets" of the song before August 14 to tease fans. It reached No. 1 on the U.S. Active Rock Chart for a total of 10 weeks and won the "Rock Song of the Year" award given by Loudwire.

"Chalk Outline" has a lyric video, which shows the lyrics of the song over a clip of a man walking around a city. The band also released an official music video for "Chalk Outline" on October 5. The video shows Adam Gontier walking through a city, singing to the camera and passing the other band members on the way, culminating with the four of them meeting in a dark room, performing the song. The video was directed by Shane Drake.

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