Question: Michael Aaron "Mike" Einziger is an American musician,he co-wrote and played acoustic guitar on Swedish DJ and electronic music producer, Avicii's 2013 worldwide hit, titled?
Context: "Dancing in My Head" is a song by American recording artist Eric Turner.  Originally co-written and produced by frequent production partner Eshraque "iSHi" Mughal, the song featured Swedish DJ Avicii (while also using his alias Tom Hangs).  His two remixes are known as the "Avicii's Been Cursed" Mix (the club mix version) and the Tom Hangs Remix (the radio edit version).  Both remixes were released as individual downloadable tracks.  A music video was made for the Tom Hangs remix (the intro uses a portion of the Avicii's Been Cursed Mix), and lyric videos were also made for both remixes.  All of the videos were published to YouTube through Eric Turner's VEVO channel, including a behind-the-scenes video for the music video.  The song has charted at #188 in the UK. True is the debut studio album by Swedish DJ Avicii.  It was released on 13 September 2013 on compact disc and audio cassette through PRMD Music, Lava Records and Sony Music Entertainment's Columbia Records.  Avicii said that sonically, the album would move away from his electronic dance and house music sound on previous records, by incorporating elements of other genres such as country music.  "True" was preceded by the release of the Aloe Blacc-assisted and Aileen Marie Quinn-written "Wake Me Up! " that featured a rare Marantz Enhanced Digital Stereo audio track and topped several charts around the world, and "You Make Me", which features vocals from Swedish artist Salem Al Fakir. "Hey Brother" is a dance song by Swedish DJ and producer Avicii from his debut studio album, "True" (2013).  American bluegrass singer Dan Tyminski provides vocals for the track.  It was written by Avicii, Ash Pournouri, Salem Al Fakir, Vincent Pontare and Veronica Maggio.  "Hey Brother" sees Avicii giving his brother advice. Michael Aaron "Mike" Einziger (born June 21, 1976) is an American musician, best known as the guitarist and co-songwriter of the rock band Incubus.  Einziger is widely known as an innovator and enthusiast of the use of pedalboard guitar effects during live concerts, and was voted #41 in Total Guitar's top 100 guitarists of all time in 2002.  In an interview with Gibson Guitars, writer Steven Rosen states "[Einziger] hasn’t played the guitar so much as he has manipulated it, submitted it to his own needs.  Einziger fashions a sonic tapestry that draws heavily from the Zappa/Vai/Hendrix school of rock."  Mike is also an active composer, writing his first full-scale orchestral concert entitled "End.> vacuum", as well as "Forced Curvature of Reflective Surfaces"; an experimental composition that was featured at the "West Coast, Left Coast" Festival at Walt Disney Concert Hall.  He co-wrote and played acoustic guitar on Avicii's 2013 worldwide hit "Wake Me Up".  Alongside this, Einziger also recently co-wrote and played guitar on David Guetta's Lovers on the Sun. "Waiting for Love" is a song by Swedish DJ and music producer Avicii, produced by Avicii and Dutch producer Martin Garrix, and featuring uncredited vocals from Simon Aldred, the lead singer of Cherry Ghost.  The track was released on 22 May 2015 as the lead single from Avicii's second studio album "Stories" (2015).  The lyrics were also written by Aldred. "Wake Me Up" (stylised as "WAKE ME UP!")  is a song by Swedish DJ and electronic music producer Avicii, released as the lead single from his debut studio album "True", released on CD and cassette by PRMD Music, Lava Records and Sony Music's Columbia Records on June 17, 2013.  American soul singer Aloe Blacc provides vocals for the track and Mike Einziger of Incubus provides acoustic guitar.  Avicii introduced "Wake Me Up!"  for the first time live on stage at the Ultra Music Festival in Miami.  The experimental rendering (it was accompanied by a live band with instruments and vocalists, including Blacc, Einziger and Incubus members Ben Kenney on bass and José Pasillas on drums) reportedly confused and angered a section of the electronic dance festival community.  Subsequently, Avicii achieved critical and commercial success with the release of the single worldwide. "The Nights" is a song by Swedish DJ and music producer Avicii.  It features uncredited vocals by Nicholas Furlong, who co-wrote the song with Jordan Suecof, Gabriel Benjamin, and John Feldmann.  On 1 December 2014, it was released as a digital download by PRMD Music and Universal Island on Avicii's "The Days / Nights", then on 11 January 2015 in the United Kingdom.  The song peaked at number 6 on the UK Singles Chart and number 1 on the UK Dance Chart.  On 23 January 2015, Avicii released "The Nights (Avicii by Avicii)", his own remix of the song.  The song appears on the UK version of Avicii's second studio album "Stories" (2015). AVĪCI (01) is an extended play by Swedish DJ and record producer Avicii.  It was produced by Avicii, Benny Blanco, Andrew Watt, Cashmere Cat and Carl Falk, and released through Avicii Music on 10 August 2017. "You Make Me" is a song written and recorded by Swedish DJ, remixer and record producer Avicii and Swedish musician and singer Salem Al Fakir in collaboration with Swedish songwriter Vincent Pontare and producer Arash Pournouri.  It was produced for Avicii's debut studio album, "True" and appears as the second track on the album.  The song was released as the second single from "True" on 30 August 2013 as a follow-up to "Wake Me Up".  The single made its worldwide debut on BBC Radio 1's "The Pete Tong Show" on 16 August. "The Days" is a song by Swedish DJ and music producer Avicii, featuring vocals by English recording artist Robbie Williams.  The song was written by Robbie Williams, Salem Al Fakir, Avicii and Vincent Pontare, and was produced by Avicii, Fakir and Pontare.  The song was played for the first time in Boston, featuring uncredited vocals by Fakir.  The song was released worldwide on 3 October 2014.  It was released alongside "The Nights" in "The Days / Nights".  A planned release in the United Kingdom on 23 November 2014 was cancelled.
Answer: Wake Me Up