Question: Both the single "Stay" and the debut studio album "Cloud Nine" were developed by which Norwegian DJ and record producer?

full_context: Document 1: Cloud Nine (Kottonmouth Kings album): Cloud Nine is the ninth official album from the Kottonmouth Kings, released on August 28, 2007. Band member Daddy X stated that "Cloud Nine" is the "most adventurous" Kottonmouth Kings album release to date. "Cloud Nine" features artists such as Tech N9ne, the Insane Clown Posse, and Cypress Hill. It includes a bonus DVD containing videos for the songs "City 2 City", "Livin' Proof", "Think 4 Yourself", and others that not only include the Kottonmouth Kings, but also that of their newly signed labelmates. The album title was thought up by band member Pakelika. It is meant to show that it is their ninth official album and also referred to the so-called "greatness of being high with the heavens". (From informal English: "to be on cloud nine" - to be extremely happy)
Document 2: Stay (Kygo song): "Stay" is a song by Norwegian DJ and record producer Kygo, featuring American singer Maty Noyes. The song was produced by Kygo with fellow Norwegian, William Wiik Larsen, who also wrote it with Noyes. It was released as the fourth single from Kygo's debut studio album, "Cloud Nine" (2016). An official music video for the song was released on 18 February 2016.
Document 3: Stay the Night (Zedd song): "Stay the Night" is a song by Russian-German electronic dance music producer Zedd, from the deluxe edition (2013) of his debut studio album, "Clarity " (2012). It features vocals from Hayley Williams, the lead singer of American rock group Paramore. The song was written by Zedd, Williams, Benjamin Eli Hanna, and Carah Faye. "Stay the Night" was released to digital retailers on September 10, 2013, by Interscope Records as the lead single off the deluxe edition of "Clarity", and the fourth overall single from the album.
Document 4: In Colour (Jamie xx album): In Colour is the debut studio album by English producer Jamie xx, released on 29 May 2015 by Young Turks. The album was composed during a five-year period while a member of the indie pop band The xx, starting with his production on "xx" in 2009. After starting his solo career with the remix album "We're New Here" (2011) and singles like "All Under One Roof Raving" (2014), he was intent on making the album something of a departure from his previous work and genre. The album features guest vocals from fellow The xx members Romy and Oliver Sim, as well as from Young Thug and Popcaan. The album produced five singles: "Girl" and "Sleep Sound" as a double-single on 5 May 2014, "Loud Places" on 27 March 2015, "Gosh" on 4 May and "I Know There's Gonna Be (Good Times)" on 22 May.
Document 5: Carry Me (song): "Carry Me" is a 2016 song by Norwegian DJ and record producer Kygo from his debut studio album, "Cloud Nine". It was released as the sixth single from the album on 12 August 2016. The song features American singer Julia Michaels. The song was performed in the 2016 Summer Olympics closing ceremony in the Maracanã Stadium on 21 August 2016.
Document 6: Stay (Rihanna song): "Stay" is a song recorded by Barbadian singer Rihanna for her seventh studio album, "Unapologetic" (2012). It features guest vocals by Mikky Ekko, and was released as the second single from the album on January 7, 2013. "Stay" was co-written by Ekko and Justin Parker. The song's lyrical content speaks of temptation and the inability to resist true love. Music critics were generally positive in their opinion regarding the balladry, with most describing it as a standout track on the album, though a few labeled it as boring. The song was featured on the third-season finale of the TV Show Younger.
Document 7: Major Key (album): Major Key (stylized as Major 🔑) is the ninth studio album by American musician <a href="DJ%20Khaled">DJ Khaled</a>. It was released on July 29, 2016, by We the Best Music Group and Epic Records. The album features guest appearances from Future, Big Sean, Rick Ross, Jay-Z, Drake, Nas, Kendrick Lamar, Betty Wright, J. Cole, Bryson Tiller, Nicki Minaj, Chris Brown, August Alsina, Jeremih, Kodak Black, Jeezy, French Montana, YG, Yo Gotti, Gucci Mane, 2 Chainz, Jadakiss, Fabolous, Fat Joe, Busta Rhymes, Kent Jones, Travis Scott, Lil Wayne, Meghan Trainor, Wiz Khalifa, Wale and Mavado.
Document 8: Stay (Sugarland song): "Stay" is a song recorded by American country music duo Sugarland. It was released in September 2007 as the fourth and final single from their album "Enjoy the Ride" (see 2006 in country music). Overall, the song is the group's eighth single to enter the "Billboard" Hot Country Songs charts, where it reached a peak position of #2 for four weeks, stuck behind Taylor Swift's "Our Song", and has become their signature song. The music video for "Stay" was ranked #10 on CMT's 100 Greatest Videos.
Document 9: Raging (song): "Raging" is a 2016 song by Norwegian DJ and record producer Kygo from his debut studio album, "Cloud Nine". It was released as the second promotional single from the album on 1 April 2016, becoming later the fifth single from the album. The song features Irish rock band Kodaline. "Raging" also includes writing credits from James Bay.
Document 10: Flight Facilities: Flight Facilities is an Australian electronic producer duo that also performs as Hugo & Jimmy. In 2009, they began mixing songs by other artists before crafting their own original material. The duo consists of Hugo Gruzman and James Lyell. Their debut album, "Down to Earth" was released in October 2014 and features prominent names in the industry such as Kylie Minogue, Emma Louise, Reggie Watts, Bishop Nehru, Owl Eyes, and Stee Downes.
Document 11: Fragile (Kygo and Labrinth song): "Fragile" is a 2016 song by Norwegian DJ and record producer Kygo and British singer Labrinth. It was released as the first promotional single from Kygo's debut studio album, "Cloud Nine".
Document 12: Stay (David Guetta song): "Stay" is a house song performed by French DJ David Guetta, featuring vocals from singer Chris Willis. The track was released as the second single from Guetta's second studio album, "Guetta Blaster" on September 13, 2004. The single was not released in the United Kingdom. In certain territories, the single was released as a double A-side with the French only single "Money". A music video for the track exists, but it does not feature either Guetta or Willis. The single found the most success on the Belgian Singles Chart, peaking at #10.
Document 13: Stay With Me (Goblin song): "Stay With Me" is a song recorded by South Korean singers Punch and Chanyeol, a member of K-pop group EXO, serving as a original soundtrack for the 2016 hit television drama "". The song was written by Lee Seung Joo and composed by the musical duo Rocoberry. The single was released on December 3 and was part 1 in a series composed of high-charting singles.
Document 14: Stay (Black Stone Cherry song): "Stay" is a song by American rock band Black Stone Cherry, written by the band along with Joey Moi. Black Stone Cherry recorded it on their 2011 album "Between the Devil and the Deep Blue Sea", produced by Howard Benson.
Document 15: Cloud Nine (Kygo album): Cloud Nine (Cloud IX) is the debut studio album by Norwegian DJ and record producer Kygo and features the likes of Maty Noyes, Conrad, Parson James, Tom Odell, Foxes, Matt Corby, RHODES, Will Heard, Julia Michaels, James Vincent McMorrow, Kodaline, Labrinth, John Legend and Angus & Julia Stone. It was released on 13 May 2016 by Sony Music and Ultra Music.
ground_truth: Kygo