In this task, you're given passages that contain mentions of names of people, places, or things. Some of these mentions refer to the same person, place, or thing. Your job is to write questions that evaluate one's understanding of such references. Good questions are expected to link pronouns (she, her, him, his, their, etc.) or other mentions to people, places, or things to which they may refer. Do not ask questions that can be answered correctly without understanding the paragraph or having multiple answers. Avoid questions that do not link phrases referring to the same entity. For each of your questions, the answer should be one or more phrases in the paragraph, and it should be unambiguous.
Q: Passage: On 12 January 2010, M.I.A. posted a video clip on Twitter, which featured a new song, but revealed no information about it other than the heading "Theres space for ol dat I see" (sic). The following day her publicist confirmed that the track was entitled "Space Odyssey" and had been produced in collaboration with Rusko to protest a travel piece about Sri Lanka printed in The New York Times.  The track made it onto the final album under the revised title "Space". The same month, she filmed a short film for the song "Born Free". At the end of April the track was released as a promotional single, and the short film accompanying the song was released. The film, directed by Romain Gavras, depicts a military unit rounding up red-headed young men who are then shot or forced to run across a minefield. The film, which also features nudity and scenes of drug use, caused widespread controversy and was either removed or labelled with an age restriction on YouTube. In the weeks following the release of the film, M.I.A. was the most blogged about artist on the Internet, according to MP3 blog aggregator The Hype Machine. M.I.A. found the controversy "ridiculous", saying that videos of real-life executions had not generated as much controversy as her video. In the run-up to the album's release, "XXXO", which Entertainment Weekly described as the "first official single" from the forthcoming album, "Steppin Up", "Teqkilla" and "It Takes a Muscle" were released online. On 6 July 2010 she made the entire album available via her Myspace page. On 20 September, "Story To Be Told" received a video, on its own website, featuring the song's lyrics in CAPTCHA formatting. In December, "It Takes a Muscle" was released as a two-track promotional single.
A:
What is the name of the artist of the song that had a short film that involved red-headed men being rounded up?