Question: Who else besides Adele wrote the song for which Tristan Wilds was in the music video?

Context articles: Water and a Flame
VenetianPrincess
Motion Theory (company)
No One Else on Earth
O Tú o Ninguna
Tristan Wilds
Hello (Adele song)
Hometown Glory
List of songs recorded by Adele
Painface

"Water and a Flame" is a song recorded by Daniel Merriweather for his debut solo album, "Love & War".
 It features vocals from Adele.
 "Water and a Flame" was released as the album's fourth and final single on 2 November 2009.
 Produced by Eg White and released under Columbia Records, "Water and a Flame" peaked at number 180 on the UK Singles Chart.
 The song's music video does not feature Adele.
 In 2013, "Water and a Flame" was recorded by Celine Dion for her album, "Loved Me Back to Life".
Jodie-Amy Rivera (born February 22, 1984), also known as VenetianPrincess, is a YouTube Internet personality since 2006.
 Her videos are usually parodies of songs and events in pop culture.
 As of October 2015, her two channels have amassed a combined subscriber count just under 1 million, with over 340 million video views.
 She gained notoriety in 2006 after being featured on the front page of YouTube, and in 2007 was one of the first people invited into YouTube's revenue sharing program.
 In December 2008, Samsung announced that her music video for her original song "Somewhere Else" is the pre-installed video on all Samsung Behold cell phones.
 PC World Magazine named her "7 Things Guys Don't Have To Do" music video one of the top 10 viral videos of 2008.
 She was the most subscribed female in the world from February 2009 to August 2012.
Motion Theory is an American production company that was founded on 1 May 2000 by Mathew Cullen and Javier Jimenez.
 The company is located in Marina Del Rey in Los Angeles, California, United States.
 The company has produced hundreds of projects and has been awarded multiple Grammys, MTV Video Music Awards and AICP Awards for its commercial and music video production work.
 Its director roster includes Mathew Cullen, Bo Krabbe, Guillermo del Toro, Jesus de Francisco, Christopher Leone, Clement Oberto, Daniel Reisinger, Lucas Borras, Marlind & Stein, Chris Riehl, Vanessa Marzaroli and Syyn Labs.
 Motion Theory's notable work includes commercials for Audi, HP, IBM, Samsung, Nike, NFL; and music videos for Adele, Weezer, The Black Eyed Peas and Katy Perry.
 Motion Theory holds the Guinness World Record for the most internet memes in a music video, 51 featured in Weezer's Pork and Beans.
 The video was directed by Cullen and produced by Javier Jimenez and Bernard Rahill.
"No One Else on Earth" is a song written by Jill Colucci, Stewart Harris and Sam Lorber, performed by American country music artist Wynonna.
 It was released in August 1992 as the third single from Wynonna's self-titled debut album.
 It was also that album's third Number One hit on the "Billboard" Hot Country Singles & Tracks (now Hot Country Songs) charts.
 It was remixed for release in the UK in 1994, titled "No One Else on Earth '94".
 It was released on cassette, vinyl, and CD formats.
 This version was released internationally on Wynonna's first solo compilation album, Collection, in 1997, labeled as "No One Else on Earth (Club Mix)".
 This version was used for the music video for the song.
"O Tú o Ninguna" (English: "Or You or Nobody" ) is a song written by Juan Carlos Calderón and produced and performed by Mexican singer Luis Miguel.
 The song is a bolero in which the protagonist cannot envision his life without anyone else besides his love interest.
 It was released as the second single from the album "Amarte Es un Placer" on 6 September 1999.
 The track reached the top of the "Billboard" Hot Latin Songs chart in the United States and peaked at number seven on the Brazilian Singles Chart.
Tristan Paul Mack Wilds (born July 15, 1989) is an American actor, singer-songwriter, and record producer.
 Wilds is credited as Tristan Wilds as an actor and Mack Wilds as a recording artist.
 He is known for his roles as Michael Lee on the HBO original drama series, "The Wire", and as Dixon Wilson on the CW teen drama series, "90210".
 He was also featured in the Adele music video for "Hello".
 His debut album, "" was released on September 30, 2013 and was nominated for the Best Urban Contemporary Album at the Grammy Awards in 2014.
 Wilds' sophomore album was released on April 7, 2017.
"Hello" is a song by English singer Adele, released on 23 October 2015 by XL Recordings as the lead single from her third studio album, "25" (2015).
 Adele co-wrote the song with her producer, Greg Kurstin.
 "Hello" is a piano ballad with soul influences, and lyrics that discuss themes of nostalgia and regret.
 Upon release, the song was well received by music critics, who compared it favourably to Adele's previous work and praised the song's lyrics and Adele's vocals.
 It was recorded in London.
"Hometown Glory" is the debut single by British singer Adele, released on 22 October 2007 in the United Kingdom.
 The song appears on her debut studio album "19" (2008).
 In 2008, the song was re-released as her fourth single.
 Adele wrote the song in 10 minutes after her mother tried to persuade her to leave her home suburb of West Norwood in London for university.
 "Hometown Glory" is the first song that Adele ever wrote.
Adele is an English singer and songwriter.
 After signing a contract with record label XL Recordings in September 2006, Adele began to work on her debut studio album, "19", which was ultimately released in 2008.
 At this time, the singer contributed guest vocals on the song "My Yvonne" for Jack Peñate's debut studio album "Matinée" (2007).
 The first single released from "19" was "Chasing Pavements", which Adele wrote in collaboration with Eg White.
 They co-wrote two other songs for the album: "Melt My Heart to Stone" and "Tired".
 She also collaborated with Sacha Skarbek on the single "Cold Shoulder" and recorded a cover version of Bob Dylan's "Make You Feel My Love".
 However, most of the songs were written solely by Adele, including "Best for Last", "Crazy for You", "First Love", and "My Same", as well as her debut single, "Hometown Glory".
Painface is an American Death metal band that originally formed in 1997 in Des Moines, Iowa, by former Slipknot frontman Anders Colsefni.
 The band broke up in 2001, later reforming in 2011, and releasing a new E.P. in 2013 titled 'Skullcrusher'.
 The band was set to release their first album since Fleshcraft (2000), but indifferences where met, and the band broke up yet again in 2015.
 On December 5, 2016, a year later after the band's second dissolution, frontman Colsefni released a 12-second teaser video on YouTube of a new track titled 'GunSlinger' citing the bands Second Reformation.
 Little is known to who else besides Anders are a part of the newest lineup.