"Heartline" is a song by British singer Craig David.

The song was released as the album's lead single on 14 September 2017.

[1] On 15 September 2017, David announced "Heartline" as the lead single from his then-upcoming seventh studio album, The Time Is Now, set to be released on 26 January 2018.

"Heartline" is an R&B[2] song with influences of electronic music, with a "bright" tune like "Ain't Giving Up", his previous single.

[3] The music video of the song was released on David's official YouTube account on 18 October 2017.