Tarja and german project Schiller recorded the song Tired of Being Alone.

Schiller was founded by Christopher von Deylen and Mirko von Schlieffen in 1998, signaled with the release of their first single Glockenspiel. They followed up with the release of their first album, Zeitgeist (Time Spirit) in 1999. Schiller's second studio album Weltreise (Voyage) was inspired by a two-month-long road trip that Deylen took with his father from London to Peking.

Christopher and Mirko had creative differences, a conflict between the two of them regarding the direction they wanted to take Schiller led to Von Schlieffen leaving the group.

After the split, A Third studio album was released called Leben with German version being released first. Many singles were to be released including both songs with Maya Saban ("I've seen it all", "I miss you") and also Sarah Brightman's "Smile" along with "Liebe" recorded with Mila Mar and "I feel you" with the vocals from Peter Heppner, last two being accompanied by videos as well. The american version of the song "Liebe" was released as "Love" along with English lyrics.

Schiller's fourth studio album is entitled Tag Und Nacht (Day And Night). It was released in Germany through Universal Music in mid-fall 2005, with two editions:
A standard release,which oversees the emergence of a new singer, Jette von Roth, with no previous material, prior to the collaboration at this album. She will record two additional tracks, with one of those performed on the "Day and Night" tour, and clips were also made. Thomas Dürr, a vocalist from "Die Fantastischen Vier" performs in the first single.
A two disc deluxe edition with two new songs, a remix of "Die Nacht...", and a chill-out sample compilation of the album.

The North American release of Day And Night came on 10 July 2007. A DVD by the same name containing footage of a live concert was released simultaneously.

Schiller's fifth album, Sehnsucht (Longing) was announced in December 2007 and later released on 22 February 2008. Sehnsucht was simultaneously released in two formats and in three editions which are as follows:
A limited super deluxe edition 3-disc release with two CDs and a DVD. Over 30 new songs will be on the album, with vocalists including Kim Sanders and Jette von Roth who have collaborated with Schiller in the past, as well as some new voices, Klaus Schulze, Ana Torroja, Despina Vandi, Ben Becker, Xavier Naidoo, among others.

The DVD contains footage from the Schiller concert in Kiev, as well as music video clips and 15-minute segment with von Deylen himself. Also included is a 36-page book containing photos, discussions, detailed information about particular songs, and other ephemera.
A limited edition which contains only one audio disc and a DVD. The audio disc comprises a selection of tracks from the first and second discs of the super deluxed edition. The DVD is identical to the one in the super deluxe edition.

Sehnsucht, a track from the new album, is the first video, and the first single from the album.

Over 100,000 copies of Sehnsucht have been sold since the release of the album, It has received a golden certification.

"Sehnsucht" was internationally released under the name "Desire" on 26 May 2008.

Schiller also collaborated with Colbie Caillat on "You" which was released in 2008, both of them appear in the accompanying video. Same year Schiller produced another successful single called 'Time For Dreams' with world famous Chinese pianist Lang Lang. The song was used by the German TV channel ZDF during the 2008 Olympic games in Beijing.

Maserati used one of Schiller's song "Drifting and Dreaming" for their promotional video of the Maserati Granturismo.

The english edition of the album Atemlos, Breathless, reached until number 10 in the chart of IFPI in Greece.

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