Question: What is the birthdate of this American musician, who sings with Alice in Chains on the album A Looking in View?

Context paragraphs:
Heaven Beside You: "Heaven Beside You" is a song by American grunge band Alice in Chains, from their third album "Alice in Chains" (1995).  The song was included on the compilation albums "Music Bank" (1999), "Greatest Hits" (2001), and "The Essential Alice in Chains" (2006).

Over Now: "Over Now" is a song by the American rock band Alice in Chains, released on their album "Alice in Chains" (1995).  It was a single from the band's "MTV Unplugged" performance, and was used to close the televised broadcast.  The B-Side consists of the original studio version of the song.  This is the second longest song that Alice in Chains has released as a single, behind "A Looking in View".

Alice in Chains (album): Alice in Chains (occasionally informally referred to as The Dog Album, The Dog Record, and Tripod) is the self-titled third studio album by the American rock band Alice in Chains.  It was released on November 7, 1995, and was the follow-up to the highly successful "Dirt".  As with their previous releases, the album's songs focus on heavy subject matter such as depression, isolation, drug use, anger and death.  The band relies less on metallic riffs and more on melody and texturally varied arrangements, integrating some of the more delicate acoustic moods of their EPs.  However, the riffs are mostly down-tuned and atonal, employing a strong doom metal vibe.

William DuVall: William Bradley DuVall (born September 6, 1967) is an American musician, best known as being the current co-vocalist and a rhythm guitarist for the alternative metal band Alice in Chains replacing original vocalist Layne Staley, who died in 2002.  DuVall joined Alice in Chains in 2006, and he appears on the 2009 album "Black Gives Way to Blue" as well as the 2013 follow-up "The Devil Put Dinosaurs Here".

The Devil Put Dinosaurs Here: The Devil Put Dinosaurs Here is the fifth studio album by the American rock band Alice in Chains, released on May 28, 2013.  It is the band's second reunion album.  Following a worldwide tour in support of its previous album, "Black Gives Way to Blue" (2009), Alice in Chains began work on a new album.  The making of "The Devil Put Dinosaurs Here" lasted for more than a year and the release of the album was delayed numerous times.  The band entered the studio in July 2011 to start work on their fifth album.  During the writing and recording sessions, guitarist Jerry Cantrell underwent shoulder surgery, which resulted in the delay of the album.  The recording sessions of "The Devil Put Dinosaurs Here" were completed in December 2012.

Grind (song): "Grind" is a song by American rock band Alice in Chains and the lead single from their album "Alice in Chains" (1995).  It serves as the opening track to the album but, despite being its first single, did not experience the radio longevity of some of its contemporaries.  The song was included on the compilation albums "" (1999), "Music Bank" (1999), "Greatest Hits" (2001), and "The Essential Alice in Chains" (2006).  Jerry Cantrell sings lead vocals on the song with Layne Staley harmonizing with him.

James Bergstrom: James Bergstrom is an American musician best known as the drummer for the band Second Coming.  Before that, he played drums for the band Sleze (later renamed Alice N' Chains), which also featured future Alice in Chains vocalist Layne Staley.

Sea of Sorrow: "Sea of Sorrow" is a song by the American rock band Alice in Chains, featured on their debut full-length album "Facelift" (1990).  The song was included on the compilation album "The Essential Alice in Chains" (2006).  A demo version of the song was included on the box set "Music Bank" (1999).

Black Gives Way to Blue: Black Gives Way to Blue is the fourth studio album by the American rock band Alice in Chains, released in September 29, 2009.  It is their first record without singer Layne Staley, who died in 2002.  It instead features new vocalist and rhythm guitarist William DuVall.  It is the first Alice in Chains album released on Virgin Records and their first venture away from Columbia, who handled all of their previous releases.  The album debuted at No. 5 on the "Billboard" 200, and was certified gold by the RIAA on May 26, 2010, with shipments exceeding 500,000 copies and has sold 1 million copies worldwide.  The singles ""Check My Brain"" and ""Your Decision"" reached No. 1 on Billboard's Mainstream Rock Tracks, while ""Lesson Learned"" reached No. 4. " "Check My Brain"" was also the band's first #1 song on the Alternative Songs chart, and on the Hot Rock Songs chart, and it also reached No. 92 on Billboard's Hot 100, becoming the band's first single to appear on the chart.

A Looking in View: "A Looking in View" is a song by American metal band Alice in Chains, featured on their fourth studio album "Black Gives Way to Blue" (2009).  It was released as the lead single from the album on June 30, 2009, marking it as the band's first single since the previous decade.  The song was the band's first release with vocalist William DuVall, who replaced the band's original vocalist, Layne Staley.  Clocking in at a length of seven minutes and six seconds, it is the longest song Alice in Chains has released as a single.

Supporting paragraphs: A Looking in View William DuVall
Answer: September 6, 1967