Question: Which singer is Dutch, Floor Jansen or Aaron Lewis?

Context paragraphs:
Wish I Had an Angel: "Wish I Had An Angel" is the eleventh single for Finnish symphonic metal band Nightwish, the second from their fifth album "Once".  The song features vocals by then-vocalist Tarja Turunen and bassist Marco Hietala.  The song was still performed live after Turunen's departure with Anette Olzon, before her departure, and current vocalist Floor Jansen afterwards.

Floor Jansen: Floor Jansen (] ; born 21 February 1981 in Goirle) is a Dutch singer, songwriter, and vocal coach.  She is the lead vocalist of Finnish symphonic metal band Nightwish.

Nightwish discography: The discography of the Finnish symphonic metal band Nightwish consists of eight studio albums, one extended play, four live albums, seven compilations, thirteen music videos and twenty one singles.  The band was formed in 1996 by songwriter and keyboardist Tuomas Holopainen, guitarist Emppu Vuorinen, and former vocalist Tarja Turunen; Nightwish's current line-up has six members although Turunen has been replaced by Anette Olzon, and the original bassist, Sami Vänskä, has been replaced by Marco Hietala, who also took over the male vocalist part.  Olzon left the band in 2012 and was replaced by Floor Jansen.

Showtime, Storytime: Showtime, Storytime is a video release, released as a double Blu-ray, DVD and CD from Finnish symphonic metal band Nightwish.  Nuclear Blast recorded their live performance at Wacken Open Air in Wacken, Germany on August 3, 2013.  "Showtime, Storytime" is the first Nightwish production to feature Floor Jansen on vocals.  She initially replaced previous vocalist Anette Olzon during their North America tour leg, and on October 9, 2013, it was revealed that she would become an official band member, along with Troy Donockley.  The running time of the concert is 1 hour and 38 minutes.  The album also contains a 120-minute documentary about the first days of Jansen in the band, still as an only live member, and her process of adaptation in the band, called "Please Learn the Setlist in 48 Hours".

Antagonise: Antagonise is the second album by Dutch metal supergroup MaYaN.  It was released on January 31, 2014.  The 11-song CD, recorded at the Sandlane studio with producer Joost van den Broek (ReVamp, Stream of Passion), features guest appearances by Floor Jansen (After Forever, ReVamp), Marcela Bovio (Stream of Passion) and the Greek virtuoso violinist Dimitris Katsoulis.

Endless Forms Most Beautiful (album): Endless Forms Most Beautiful is the eighth album by Finnish symphonic power metal band Nightwish.  It was released on March 27, 2015 in Argentina and most of Europe, March 30 in the UK, and March 31 in the US.  The album is the band's first featuring singer Floor Jansen and the first with Troy Donockley as a full-time member.  It was recorded without drummer Jukka Nevalainen, who took a break from the band due to severe insomnia.  Drumming was by Kai Hahto of Wintersun and Swallow the Sun.  The album includes only five Nightwish members, despite its being their first album release as a sextet.

Aaron Lewis: Aaron Lewis (born April 13, 1972) is an American musician and songwriter, who is the lead vocalist, rhythm guitarist, and founding member of the rock band Staind, with whom he has released seven studio albums.  He has since ventured into country music with his debut solo EP "Town Line", which was released on March 1, 2011 on Stroudavarious Records.  Lewis' first full-length solo release, "The Road", was released by Blaster Records on November 13, 2012.

ReVamp: ReVamp was a Dutch progressive metal band formed by singer-songwriter Floor Jansen after her previous band After Forever disbanded in 2009.

Élan (song): "Élan" is a single by Finnish symphonic metal band Nightwish, the first from their eighth album "Endless Forms Most Beautiful".  The song marks the first Nightwish song to feature its newest frontwoman, Dutch singer Floor Jansen, on vocals, and also the first to feature Troy Donockley as a full-time member and Kai Hahto as a temporary replacement for Jukka Nevalainen.

Decipher (After Forever album): Decipher is the second album by Dutch symphonic metal band After Forever, released in 2001.  In this album, the band make use of live classical instruments and a complete choir to back up the soprano voice of lead singer Floor Jansen.  Thrown in the mix are also a duet of soprano and tenor voices in "Imperfect Tenses" and the recording of the late Israeli PM Yizhak Rabin voice during the Peace treaty signing ceremony on October 26, 1994 on "Forlorn Hope".  This is the last After Forever album with guitarist and founder Mark Jansen, who left the band soon after its release.

Supporting paragraphs: Floor Jansen Aaron Lewis
Answer: Floor Jansen