Question: Alex da Kid is a producer who has worked on the song by which American rock band from their EP Continued Silence?
Context: The American rock band Imagine Dragons has released three studio albums, four live albums, eight extended plays, seventeen singles, two promotional singles and twelve music videos.  The band released their self-titled debut extended play in September 2009; "Hell and Silence" and "It's Time" followed in June 2010 and 2011 respectively.  Imagine Dragons later found commercial success with the release of their fourth extended play, "Continued Silence", in February 2012. " It's Time" was released as the lead single from the EP, peaking at number fifteen on the United States "Billboard" Hot 100.  It has since sold over 3 million copies in the United States.  "Continued Silence" went on to peak at number 40 on the "Billboard" 200 in the United States. Hell and Silence is the second extended play (EP) by American rock band Imagine Dragons, released on June 1, 2010.  It was recorded at Battle Born Studios.  All songs were written by Imagine Dragons and self-produced; the EP was in part mixed by Grammy nominated engineer Mark Needham.  Most of the songs on this EP were remastered and included on the "Continued Silence EP" and/or "Night Visions", excluding "All Eyes" and "Emma". "Coming Home" is a song by American rapper and producer Diddy and his band Dirty Money, from their debut album "Last Train to Paris" (2010).  It was released on November 21, 2010, as the album's fourth single.  The contemporary hip-hop pop song was written by Jermaine Cole, Diddy, Jay-Z, Alex da Kid, and Skylar Grey.  Kid and Jay-Z produced the song while Grey featured vocals on the song's chorus.  Jay-Z and Kid gifted the song to Diddy for "Last Train to Paris".  Autobiographically written, "Coming Home" is inspired by moments in Diddy's life, the loss of his close friend, The Notorious B.I.G and references to classic songs by Dionne Warwick, McFadden & Whitehead, and Smokey Robinson & the Miracles. "Demons" is a song by American rock band Imagine Dragons.  It was written by Imagine Dragons and Alex da Kid, and produced by Alex da Kid.  The song appears on their major-label debut extended play "Continued Silence" and also makes an appearance on their debut studio album "Night Visions" as the fourth track.  "Demons" was solicited to American triple-A radio stations on January 28, 2013 and to modern rock stations on April 1 and serves as the album's overall fifth single and was released as the third single from "Night Visions" in the United States, and was later released to contemporary hit radio stations on 17 September 2013 as an official single.  The lyrics portray the protagonist warning the significant other of his or her flaws. "Airplanes" is a song by American rapper B.o.B, featuring vocals from Hayley Williams, lead singer of American rock band Paramore.  The song was released in April 2010, as the third single from his debut studio album, "".  B.o.B co-wrote the song alongside Kinetics & One Love, Alex da Kid, DJ Frank E, and Christine Dominguez.  DJ Frank E also co-produced the song with Alex da Kid.  The song was released to iTunes on April 13, 2010 and then to urban radio on April 27, 2010. Alexander Grant (born 27 August 1982), professionally known as Alex da Kid, is a British music producer from Wood Green, London.  He has gained recognition for producing several hit singles for a plethora of artists in various music genres, such as Dr. Dre ("I Need a Doctor"), Nicki Minaj ("Massive Attack"), B.o.B ("Airplanes" featuring Hayley Williams), Eminem ("Love the Way You Lie" featuring Rihanna), Diddy ("Coming Home" with Dirty Money featuring Skylar Grey), Imagine Dragons ("Radioactive") and Cheryl ("Under The Sun"). "Radioactive" is a song by American rock band Imagine Dragons for their major-label debut EP "Continued Silence" and later on their debut studio album, "Night Visions" (2012), as the opening track.  "Radioactive" was first sent to modern rock radio on October 29, 2012, and released to contemporary radio on April 9, 2013.  Musically, "Radioactive" is an electronic rock and alternative rock song with elements of dubstep and contains cryptic lyrics about apocalyptic and revolutionist themes. Continued Silence EP is the fourth EP by American rock band Imagine Dragons, released on February 14, 2012 by KIDinaKORNER and Interscope Records.  It was recorded at Westlake Recording Studios.  All songs were written by Imagine Dragons and produced by Grammy Award-winning producer Alex Da Kid, with mixing by Grammy-winning engineer Manny Marroquin and engineer Rich Costey.  The EP was mastered by Grammy-winning mastering engineer Joe LaPorta.  All of the songs on "Continued Silence" were featured on the band's debut album "Night Visions" except for "My Fault" and "Round and Round", which were later included on deluxe editions of "Night Visions".  Previous purchases of songs from the EP counted towards "Night Visions" and decreased its price. "Gold" is a song by American rock band Imagine Dragons.  The track was released as the second single from their second studio album "Smoke + Mirrors" on December 16, 2014.  The track was written by band members Ben McKee, Daniel Platzman, Dan Reynolds and Wayne Sermon, as well as the producer of the song, Alex da Kid.  The music video was released onto Vevo on January 21, 2015.  The song was used by FX to promote their FX Now app, and by Discovery Channel to promote their show "Gold Rush"'s season 6 premiere.  The Jorgen Odegard remix of the song was featured on the soundtrack of the video game, "NBA 2K17". "American Oxygen" is a song recorded by Barbadian singer Rihanna.  It was written by Alex da Kid, Candice Pillay, Sam Harris and Rihanna; Alex da Kid and Kanye West produced it.  Written over the course of a year, "American Oxygen" was inspired by the 1984 single "Born in the U.S.A." performed by Bruce Springsteen.  It was made available for streaming on Tidal on April 5, 2015, and released for digital download on April 14 via the iTunes Store.  The song has patriotic lyrical content about a new America and the chasing of the American dream.
Answer: Imagine Dragons