Question: I Let The Music Speak, is a compilation album by which Swedish mezzo-soprano?
Context: One Night with You: The Best of Love, Volume 2 is the third compilation album released by American singer Luther Vandross, released on September 15, 1997 by Epic Records.  It is his second compilation album to be released stateside, and is a continuation of his triple-platinum selling first compilation "The Best of Luther Vandross... The Best of Love" (1989).  "One Night with You" contains four newly recorded songs including the R. Kelly-penned and Grammy-nominated "When You Call on Me/Baby That's When I Come Runnin'" and selections compiled from his later studio albums such as "Songs" (1994), "This Is Christmas" (1995), "Never Let Me Go" (1993), "Power of Love" (1991) and "Your Secret Love" (1996). "I Let the Music Speak" is a song by ABBA, featured as the first track to side two of their 1981 album "The Visitors".  It is the fifth-longest ABBA track, after "Eagle", "The Day Before You Came", "The Visitors", and "Chiquitita". For the Stars is a 2001 album by classically trained Swedish mezzo-soprano Anne Sofie von Otter, produced by Elvis Costello. Jenny Cecilia Petrén, née Berggren, (born 19 May 1972), professionally known as Jenny Berggren and Jenny from Ace of Base is a Swedish mezzo-soprano singer and former lead singer in the Swedish pop band Ace of Base.  Since 1995, she has also been writing songs and performing solo.  In 2010, she released her debut album "My Story". Hanna Tove Dahlberg (born April 25, 1973 in Stockholm) is a Swedish mezzo-soprano opera singer, active on the international opera scene.  In 2005 Dahlberg was one of a group of world-class musicians who were permitted to perform inside a building at Auschwitz for the first time ever during the filming of the International Emmy Award winning TV documentary "Holocaust: A Music Memorial Film". I Let The Music Speak is a compilation album by Swedish singer Anne Sofie von Otter. Anne Sofie von Otter (born 9 May 1955) is a Swedish mezzo-soprano.  Her repertoire encompasses lieder, operas, oratorios and also rock and pop songs. "Antidote" is a song by Swedish house music supergroup Swedish House Mafia in collaboration with Australian electronic dance music duo Knife Party.  It was released on 16 December 2011 in the United States as the second single from the Swedish House Mafia compilation album, "Until Now".  The remix EP was released on 15 January 2012 for the UK digital download in the iTunes Store.  "Antidote" was written by Swedish House Mafia members Axwell, Steve Angello and Sebastian Ingrosso, and Knife Party members (the members of the drum and bass band Pendulum) Rob Swire and Gareth McGrillen.  The song contains vocals by Swedish American hip hop recording artist Adam Baptiste (also known as ADL), whose vocals are uncredited, co-written by Swedish songwriter Klas Åhlund. Completely Cilla: 1963–1973 is a compilation album released of music by British pop singer Cilla Black.  The compilation album is a prelude to Black's 50th anniversary in show business (due in 2013) – it is the largest released compilation album of her music containing 139 digitally remastered recordings. Misia Greatest Hits is Misia's first compilation album and last release with Arista Japan, released on March 3, 2002.  It sold 587,210 copies in its first week and peaked at #1 for two consecutive weeks.  "Misia Greatest Hits" was the highest selling compilation album of 2002.  It is the 30th best selling compilation album and 90th best selling album overall of all time in Japan.  The album includes an enhanced music video for the unreleased track, "Amai Koibito", featuring Melonpan.
Answer: Anne Sofie von Otter