Question: A song who's demo was leaked on to the internet on December 17th, 2014, was part of an album that was released on March 6th, 2015 by what record company?

Context paragraphs:
New Sacred Cow: New Sacred Cow is the debut album by Kenna, released in June 10, 2003 by Columbia Records.  The album was produced by Chad Hugo of The Neptunes and Kenna.  Kenna created something of an underground buzz with the release of his first single "Hell Bent" in 2001.  The album was leaked to the internet over a year before its final release, as it was delayed by record company politics.  "Freetime" was chosen as the single to lead off the release of the album.  A video was shot, and appeared sporadically on MTV2 along with the video for "Hell Bent".  "Freetime" peaked at #19 on the Billboard Hot Dance Club Play charts.  In late 2004, "Sunday After You" was remixed by Chad Hugo and released as a single.  The single version differs greatly from the album version.

Iconic (song): "Iconic" is a song recorded by American singer and songwriter Madonna for her thirteenth studio album "Rebel Heart" (2015).  It was written by Madonna, Toby Gad, Maureen McDonald, Larry Griffin Jr., Chancelor Bennett, Dacoury Natche and Michael Tucker.  "Iconic" was produced by Madonna, Gad, AFSHeeN and Josh Cumbee, while DJ Dahi and Tucher served as additional producers.  It features American rapper Chance the Rapper and a spoken intro by American professional boxer Mike Tyson.  The song's demo was leaked onto the internet on December 17, 2014, alongside twelve other tracks from the album, with "Iconic" also being rumored as the album's title.  Its final version was released on February 9, 2015, with "Hold Tight" and "Joan of Arc", on the iTunes store.

Rebel Heart (song): "Rebel Heart" is a song recorded by American singer Madonna for her thirteenth studio album, "Rebel Heart" (2015).  Madonna co-wrote and co-produced the song with Avicii, Arash Pournouri, Salem Al Fakir, Magnus Lidehäll and Vincent Pontare.  An early demo of "Rebel Heart" as well as the final version, both leaked to the internet prior the album's scheduled release.  The final version was made available on March 6, 2015 when "Rebel Heart" was released.

2/6th Battalion (Australia): The 2/6th Battalion was an infantry battalion of the Australian Army that served during the Second World War.  Raised in October 1939 as part of the all volunteer Second Australian Imperial Force, the battalion formed part of the 6th Division and was among the first troops raised by Australia during the war.  Departing Australia in early 1940, the 2/6th were deployed to the Middle East where in January 1941, it took part in the first action of the war by Australian ground forces, the Battle of Bardia, which was followed by further actions around Tobruk.  Later, the 2/6th were dispatched to take part in the Battle of Greece, although their involvement in the campaign was short before they were evacuated.  Some members of the battalion also subsequently fought on Crete with a composite 17th Brigade battalion, and afterwards the battalion had to be re-formed in Palestine before being sent to Syria in 1941–42, where they formed part of the Allied occupation force that was established there in the aftermath of the Syria–Lebanon campaign.

Illuminati (song): "Illuminati" is a song recorded by American singer and songwriter Madonna for her thirteenth studio album "Rebel Heart" (2015).  It was written by Madonna Ciccone, Toby Gad, Maureen McDonald, Larry Griffin Jr., Mike Dean, Kanye West, Ernest Brown and Jacques Webster.  The song was produced by Madonna, West, Dean and Symbolyc One, with co-production by Charlie Heat and additional production by Travis Scott.  The song's demo was leaked to the internet in December 2014, with twelve other tracks from the album.  Its final version was released on December 20, 2014, with five other tracks on iTunes store as "an early Christmas gift" to avoid further leaks.  The song's demo version features dance synths and acoustic guitars; after showing the song to West, he felt connected to the song and changed it to a darker sound.  The song was conceived after Madonna was accused of being a member of the Illuminati; she wanted to write a song about who they really are and what they are not.

Unapologetic Bitch: "Unapologetic Bitch" is a song recorded by American singer and songwriter Madonna for her thirteenth studio album, "Rebel Heart" (2015).  It was written by Madonna, Thomas Wesley Pentz, Shelco Garcia, Bryan Orellana, Maureen McDonald and Toby Gad, with production being done by Madonna, Garcia & Teenwolf, BV, Diplo and Ariel Rechtshaid.  The song's demo was leaked to the internet in December 2014, with twelve other tracks from the album.  Its final version was released on December 20, 2014, with five other tracks on the iTunes store, as "an early Christmas gift" to avoid more leakage.  The song was conceived while Madonna was in the studio with Diplo, who worked with the singer on more than eight songs for the album.

Holy Water (Madonna song): "Holy Water" is a song recorded by American singer and songwriter Madonna for her thirteenth studio album, "Rebel Heart" (2015).  The song was written by Madonna, Martin Kierszenbaum, Natalia Keery-Fisher, Mike Dean, Kanye West and Tommy Brown.  It was produced by Madonna, Dean and West, with Charlie Heat serving as co-producer.  The demo of "Holy Water" leaked on the internet in late December 2014 and later its full version leaked in February 2015, a month prior to the album's release.  "Holy Water" is an electronica and technopop song, and it features minimalist bass stutter, ricocheting synths and "martial beats" in its instrumentation.

Hold Tight (Madonna song): "Hold Tight" is a song recorded by American singer Madonna featured on her thirteenth studio album, "Rebel Heart" (2015).  The track was written and produced by Madonna, with additional writing provided by Diplo, MoZella, Toby Gad, Ariel Rechtshaid, and MNEK.  A demo of "Hold Tight" was leaked onto the internet on December 22, 2014, while its final version was released by Madonna on February 9, 2015 on iTunes Store.  The song was later sent to Italian radio on July 24, 2015, as the third single from "Rebel Heart" in that country.

Rebel Heart: Rebel Heart is the thirteenth studio album by American singer and songwriter Madonna.  It was released on March 6, 2015, by Interscope Records.  Following the completion of the "MDNA" release and promotion, Madonna worked on the album throughout 2014, co-writing and co-producing it with various musicians, including Diplo, Avicii, and Kanye West.  She regularly uploaded pictures of her recording sessions on her Instagram account.  Unlike her previous efforts, which involved only a few people, working with a large number of collaborators posed problems for Madonna in keeping a cohesive sound and creative direction for the album.

Joan of Arc (Madonna song): "Joan of Arc" is a song recorded by American singer and songwriter Madonna from her thirteenth studio album "Rebel Heart" (2015).  It was written by Madonna, Toby Gad, Maureen McDonald and Larry Griffin Jr., with production being done by Madonna, Gad, AFSHeeN and Josh Cumbee.  The song's demo was leaked onto the internet on December 17, 2014, with twelve other tracks from the album.  Its final version was released on February 9, 2015 with two other tracks on the iTunes store.  "Joan of Arc" is the eighth track on "Rebel Heart" and has similarity to the demo version, but with a lift in its tempo during the chorus.  It is a guitar-led pop and electro-folk ballad, with drums and guitars being added as the song's instrumentation.

Supporting paragraphs: Iconic (song) Rebel Heart
Answer: Interscope Records