"Mascara" is the second single released by Australian rock band Killing Heidi from their debut album, Reflector (2000).

The re-release of the "Mascara" single was issued with "Leave Me Alone" as a double A-side; it was this version that topped the Australian chart, becoming Killing Heidi's only number-one hit in their native country.

In January 2018, as part of Triple M's "Ozzest 100", the 'most Australian' songs of all time, "Mascara" was ranked number 90.

[1] The original two-track release of "Mascara" debuted on 10 November 1999 at number 47 on the ARIA Singles Chart.

[3] The two songs were certified platinum by the Australian Recording Industry Association for shipping over 70,000 copies.