"Do or Die" is a song by American rock band Thirty Seconds to Mars, featured on their fourth studio album Love, Lust, Faith and Dreams (2013).

Written and produced by lead vocalist Jared Leto, "Do or Die" explores the feeling of standing up and living one's dreams using ironic undertones.

[6] Markos Papadatos, in his review for Digital Journal, called it an "upbeat" song which "deals with one taking their own stance on their beliefs, and living life to the fullest".

[7] In a preview of the record, Jeff Benjamin from Fuse described the song by saying that the band goes "the synthy dance route on the track's intro before fire-alarm guitars and pummeling drums roar in and smash the Korg keyboards to bits".

[17] In March 2014, it was announced that Dutch music producer Afrojack and Thirty Seconds to Mars had collaborated on a remixed version of the song.

Emily Zemler, of Billboard, wrote that between the album's "eclectic experimentation" and "voiceless soundscapes", the band "slotted in this propulsive rocker, an arena-ready anthem".

[3] Dan Slessor of Alternative Press praised it as one of the album's highlights, in which Thirty Seconds to Mars exercises their capacity for writing "titanic choruses full of sweeping drama in a manner that is almost untouchable".

[24] Brent Faulkner from PopMatters gave a mixed response, writing that the song "relies on a familiar beat as well as liberal layering".

[25] Writers for Contactmusic commended "Do or Die" as one of the standout songs on Love, Lust, Faith and Dreams and a "slow-burning hit of epic, synth-heavy electronica".

[26] Kaitlyn Hodnicki from Stature magazine was impressed with the song, calling it one of the album's more upbeat tracks, which "blooms into another epic soundscape led by [Leto's] vocals and some brilliantly used electronic elements".

She felt that the fans' vocal contribution to the song harks back to previous album This Is War without sounding "cliché or overdone".

"[4] Markos Papadatos from Digital Journal rated it an A and wrote that "the band soars as whole on this tune", calling Leto's vocals "raw, powerful and captivating.

"Do or Die" was filmed in the summer of 2013, during a European leg of the Love, Lust, Faith and Dreams Tour and features live footage of Thirty Seconds to Mars onstage as well as fan commentary.

[34] John Walker from MTV felt that throughout the fans' personal struggles "music has helped these individuals persevere and continue to enjoy life.

Likewise, Thirty Seconds to Mars seem so moved by the audience's emotions every time they perform live, 'Do or Die's concept seems to be that they want to return the favor.

"[32] Writers for MuchMusic noticed the band's tradition for producing unconventional music videos and praised "Do or Die" calling it "another epic" short film.

[35] Markos Papadatos of Digital Journal found it "compelling and visually striking", noticing real-life people from all over the world telling their "moving stories" about their aspirations and dreams.

[38] "Do or Die" was also included in the Carnivores Tour, which Thirty Seconds to Mars co-headlined with Linkin Park, and usually appeared approximately halfway through the set.

[40] Reviewing a concert, Payal Patel from AXS called "Do or Die" a "sweeping rock anthem",[41] while Ben Jolley of the Nottingham Post described a performance of the song as energetic and inspirational.

During the performance, Leto swung a flag bearing messages in support of certain social goals, and invited the audience to join the band on stage towards the finale, as confetti fell from the ceiling.