Question: Who originally composed the titular song of ABS-CBN's 2009 miniseries featuring AJ Perez?

Context articles: Daredevil: End of Days
AJ Perez
Heavy Metal Me
Batman/Teenage Mutant Ninja Turtles Adventures
It's Showtime (variety show)
Aj, aj, aj
Felix Leiter (Dynamite Entertainment)
Your Song
AJ Perez (blogger)
Sabel (TV series)

Daredevil: End of Days is an American comic book miniseries featuring the Marvel Comics character Daredevil, written by Brian Michael Bendis and David W. Mack, drawn by Klaus Janson, inked by Bill Sienkiewicz and with covers by Alex Maleev.
 Mack, Sienkiewicz and Maleev also contribute occasional interiors and splash pages throughout the series.
 It concerns the death of Daredevil, not unlike previous "Marvel: The End" miniseries, which told the final stories of other Marvel Comics characters.
Antonello Joseph "AJ" Sarte Perez (February 17, 1993 – April 17, 2011) was a Filipino actor.
 He was a member of ABS-CBN's Star Magic in Batch 13.
 He portrayed one of the lead characters in the 2009 miniseries "Your Song Presents: Underage".
 In 2010, he played his first main role on primetime in the television series, "Sabel".
 He died at the aged of 18, in a vehicular accident in Moncada, Tarlac on midnight of April 17, 2011.
heavy metal me is a DVD release by Japanese band Boris.
 It consists of various live material, video material, and "heavy metal me", a short film which is subtitled in both Japanese and English.
 The titular short film is actually a series of chapters on the disc which play in a random order every time the user hits play (though the chapters for each language remain together).
 Filmed primarily in black and white, the piece is deliberately low quality and aged, with guitarist Wata playing the lead; most chapters feature analog hiss and white noise for audio tracks, though some are totally silent, and others contain acoustic guitar plucks atop the hiss.
 The "a bao a qu" music video is based on the 7" version of the song with both sides crossfaded together into a 9-minute full length version; its video consists of extremely wide and narrow shots with low quality lighting, following several characters as they walk the streets, smoke, and reflect or contemplate.
 "the evil one which sobs" layers the titular song with its ambient counterpart "Interference Demon" from "Dronevil", but starts the former several minutes later than the coupling of the CDs would play, and fades out just at the end of the loud drone (thus removing the acoustic guitar coda of CD2); the video consists solely of shots from what appear to be underneath layers of moving webbing.
 Lastly, there are live versions of the songs "feedbacker", recorded 2003-11-1 at Shinjuku Liquid Room, and "flood", recorded 2001-5-3 at Koenji 20,000v. "staff credit" contains acoustic guitar plucks while the credits roll.
 The DVD has no "play all" option and each track must be selected individually from the main menu.
Batman/Teenage Mutant Ninja Turtles Adventures is a six-issue intercompany crossover comic book miniseries featuring fictional heroes Batman and the Teenage Mutant Ninja Turtles.
 The miniseries is based on a previous intercompany crossover titled "Batman/Teenage Mutant Ninja Turtles" between DC Comics and IDW Publishing, which was first announced during IDW's panel at the 2015 San Diego Comic-Con and released as a six-part monthly miniseries in late 2015 and early 2016.
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It's Showtime (formerly known as Showtime and Magpasikat) is a Philippine noontime variety show that premiered on October 24, 2009, on ABS-CBN.
 The show broadcasts from the ABS-CBN Studios at the ABS-CBN Broadcasting Center in Quezon City.
 The show airs Weekdays from 12:15pm to 3:20pm, and Saturdays from 12:00pm to 3:15pm, and is presented mainly by Vice Ganda, Vhong Navarro, Anne Curtis, Billy Crawford, Karylle, Amy Perez, Nadine Lustre and James Reid.
 The show is also broadcast worldwide through The Filipino Channel.
"Aj, aj, aj" or ""Aj, aj, aj (det bultar och det bankar)"" is a song written by Rune Wallebom, and originally recorded by Schytts who scored a Svensktoppen hit between the period of 9 September-9 December 1973.
 The song topped the chart.
 and was also recorded by Matz Bladhs and Roosarna.
Felix Leiter is a 2017 comic book miniseries featuring the eponymous character, who is primarily featured in Ian Fleming's James Bond novels and various other formats by several other creators.
 Written by James Robinson and illustrated by Aaron Campbell, the comic book is a spin-off from the "James Bond" series published by Dynamite Entertainment, making its debut in January 2017.
 It also marks the first time for Bond's ally and friend, Felix Leiter to get a solo adventure in any format overall.
 It is also licensed by Ian Fleming Publications that hold the literary rights to the James Bond franchise.
 Bond himself makes a cameo appearance in the comic book as part of a flashback.
"Your Song" is a ballad composed and performed by English musician Elton John with lyrics by his longtime collaborator, Bernie Taupin.
 It originally appeared on John's self-titled second album (1970).
Alwyne Jan Calinao Perez (20 April 1981) or better known as AJ Perez is a Filipino blogger and motivational speaker who gained prominence as a blogger when his article, "Dear Ex ni Janine Tugonon" ("Dear Janine Tugonon's Ex (Boyfriend)") went viral.
 He is known for his humorous, fearless and witty writing style and his works are often about politics, current events, love and relationships, and life advices.
Sabel is a Philippine romance primetime drama on ABS-CBN.
 It premiered on December 6, 2010 and ended on March 11, 2011.
 Starring Jessy Mendiola, AJ Perez, and Joseph Marco.
 replacing "Kokey @ Ako".