Sharon Janny den Adel (born 12 July 1974) is a Dutch singer who is the lead vocalist of the symphonic metal band Within Temptation.

[13] Before Within Temptation became famous, she worked for a fashion company, leaving after the band found success with their hit single "Ice Queen".

[19][20] 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.

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.

[23] 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.

[24] 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.

[26] 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.

[27] At the 2009 edition of the Night of the Proms, den Adel made a guest appearance during John Miles' performance of "Stairway to Heaven".

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.

[32] During the co-headlining Worlds Collide tour, den Adel joined the band on stage to perform the song at selected dates.