Training and voice

Sharon never formally studied singing and stated in a 2006 interview that she had sung a short while in a choir and was mostly self-taught.^[11] She used to practice alone three or four hours per day.^[12] She has been described as possessing a mezzo-soprano voice.^[13][14][15]

Within Temptation

Together with her partner, Robert Westerholt, den Adel formed Within Temptation (initially called The Portal, though the name was changed before their first recording)^[2] in 1996. She has defined their work as epic and cinematic.^[16] Her vocals play a major role in the band's sound, despite having never received formal vocal training.^[17]

Before Within Temptation became famous, she worked for a fashion company, leaving after the band found success with their hit single "Ice Queen". She utilizes her fashion expertise by designing her stage costumes and the band's merchandise.^[18] About.com described den Adel as a "versatile and skilled singer who is equally adept at singing powerfully with a full orchestra and choir as she is at singing quietly and emotionally with just a piano."^[19] When asked if she prefers to sing in Dutch or English, den Adel said that she favors the latter because "Dutch just doesn't fit to our music style. It is also not the nicest language to sing in. Italian or Spanish would then be better options."^[20]

The band were invited several times to compete at the Eurovision Song Contest as the Dutch representatives, but they have declined every time since they find it not the best place for a metal band to present themselves. In 2018, den Adel was then selected as a juror for that year's edition.^[1][21]

My Indigo

On 9 November 2017, den Adel announced on the Dutch TV-show RTL Late Night, that on the following day 10 November 2017, the first single for her solo project My Indigo, also entitled "My Indigo", would be released.^[22][23] According to den Adel, the project was originally not intended to be released to the general public as it was for her a form to deal with personal problems, and also due to a writer's block for composing for Within Temptation. After two years composing for herself and with regained inspiration to write for Within Temptation, den Adel decided to share the project publicly as a separate project named "My Indigo".^[24][25] The self titled first album was released on 20 April 2018.

Collaborations with other artists

Besides her main work on Within Temptation, den Adel has performed on-stage and in the studio with several notable artists from varied musical genres, including Tarja Turunen, Armin van Buuren, After Forever, De Heideroosjes, Oomph!, Delain, Agua de Annique, Anneke van Giersbergen and Evanescence. Before forming Within Temptation, den Adel worked together with Voyage, formed by some of the future Within Temptation members, on the track "Frozen" (not to be confused with the Within Temptation song of the same title).

The vocalist took part in several rock and metal opera projects, singing the part of Anna Held in two of Tobias Sammet's Avantasia releases, The Metal Opera and The Metal Opera Part II, later also singing the part of the "Muse" in the 2016 album Ghostlights. She also took the part of the "Indian" on Ayreon's rock opera Into the Electric Castle. Den Adel then collaborated on two of Timo Tolkki's projects, being a guest vocalist on Timo Tolkki's Avalon track "Shine", for the work The Land of New Hope, and was featured in his solo project track "Are You the One?".

Within the symphonic metal scene, den Adel collaborated with After Forever on the track "Beyond Me", released on the album Prison of Desire, performing the song live with the band at selected concerts.^[26] She was part of a duet with Marko Hietala on the track "No Compliance" for Delain's album Lucidity, also joining the band on selected live performances of the song.^[27] Den Adel was one of the guest vocalists invited for Tarja Turunen's rendition of Feliz Navidad, which featured an ensemble of names from the heavy metal scene and was released as a benefit single.^[28]

Also venturing on other musical genres, den Adel co-wrote and recorded the vocals for the track "In and Out of Love" on Armin van Buuren's 2008 trance album Imagine, which earned them awards for "Best Progressive House/Trance Track" and "Best video" on the International Dance Music Awards.^[29] They performed a special version of the song alongside the Metropole Orchestra at the 2010 edition of the Golden Harp gala ceremony, where van Buuren was awarded for his musical work.^[30] At the 2009 edition of the Night of the Proms, den Adel made a guest appearance during John Miles' performance of "Stairway to Heaven".^[31] At the end of 2012, den Adel made an appearance on a charity campaign made by a Belgian radio station to raise money for children singing the chorus of the song het Meneer Konijn lied among other Belgian celebrities.^[32] The song later topped the Belgian charts.^[33] In 2014, den Adel collaborated with Dutch rapper Ali B on the track "Hier".^[34]

In 2020, Sharon was asked by American metal band Evanescence to collaborate with them for their single "Use My Voice". Along with lead singer Amy Lee, other musicians joined in on the song such as rock vocalists Lzzy Hale, Taylor Momsen, Deena Jakoub and many more as well as Lindsey Stirling.^[35] During the co-headlining Worlds Collide tour, den Adel joined the band on stage to perform the song at selected dates.^[36]

Within Temptation

My Indigo

Guest appearances

• A^ Special edition later released.
• B^ Special appearance at the Pinkpop Festival.
• C^ Cover of the Within Temptation song, from The Silent Force.
• D^ Special rendition of the song for the 2009 Night of the Proms in the Netherlands.
• E^ Special appearance at the Metal Female Voices Fest.

Other songs