Question: What vocalist born in 1969 helped release the debut album "Dropbox"?

full_context: Document 1: Lisa Guyer: Lisa Guyer is an American singer, guitarist, and songwriter. She was born into a musical family that put on shows in their community, and Guyer learned to sing and dance by age four. Guyer's vocal skills are completely self-taught. Godsmack's Sully Erna describes Guyer as having "a phenomenal voice and a four-octave range. Guyer is an associate professor at Berklee College of Music in Boston.
Document 2: Down (band): Down is an American heavy metal supergroup that formed in 1991 in New Orleans, Louisiana. The band's current lineup consists of vocalist Phil Anselmo (Pantera), guitarist Pepper Keenan (Corrosion of Conformity), guitarist Bobby Landgraf (Honky), bassist Pat Bruders (Goatwhore), and drummer Jimmy Bower (Crowbar, Eyehategod, and Superjoint Ritual). Since their formation, Down has gone on hiatus twice and they have released five studio albums. The first three were LPs entitled "NOLA" (1995), "" (2002), and "" (2007). In 2008, the band began working on additional material, which resulted in two EPs entitled "Down IV – Part I", released in September 2012 and "Down IV – Part II", released in May 2014.
Document 3: Godsmack discography: Godsmack is an American alternative metal band founded in 1995 by singer Sully Erna and bassist Robbie Merrill. The band has released six studio albums, one EP, one compilation, three video albums, and twenty-three singles. Erna and Merrill recruited local friend and guitarist Lee Richards and drummer Tommy Stewart to complete the band's lineup. In 1996, Tony Rombola replaced Richards, as the band's guitarist. In 1998, Godsmack released their self-titled debut album, a remastered version of the "All Wound Up" demo. The album was distributed by Universal/Republic Records and shipped four million copies in the United States. In 2001, the band contributed the track "Why" to the Any Given Sunday soundtrack. After two years of touring, the band released "Awake". Although the album was a commercial success, it failed to match the sales of "Godsmack". In 2002, Stewart left the band due to personal differences, and was replaced by Shannon Larkin.
Document 4: Ryan Shupe &amp; the RubberBand: Ryan Shupe & the RubberBand is an American Rock / Bluegrass group founded in the mid-1990s in Ogden, UT. The band's current lineup comprises Ryan Shupe (fiddle, guitar, ukulele, mandolin, lead vocals), Roger Archibald (guitar, vocals), Craig Miner (banjo, bouzouki, mandolin, guitar, vocals), Josh Larsen (bass guitar, string bass, vocals), and Nate Young (drums, vocals). After recording four studio albums on their own independent record label, Ryan Shupe & The RubberBand were signed to Capitol Records in 2005. Their first album for Capitol, 2005's "Dream Big", produced a Top 40 hit on the U.S. "Billboard" Hot Country Songs charts in its title track. The second single from the album, however, failed to chart, and the band was dropped from Capitol. In 2008, the band signed to Montage Music Group and released the album Last Man Standing. After this, the band continued to tour nationally and promote their unique brand of music. In 2010, the band released the album "Brand New Shoes" on their own independent label. This album has many crowd favorites and highlights the cross-genre, acousti-jam sound they have become known for. The band is currently promoting their new album "We Rode On" which leans more into the Rock side of their musical arsenal and have released three videos to promote the upcoming release. These videos are for the songs The Sun Will Shine Again, We Rode On, and Just Say Yes.
Document 5: Avalon (Sully Erna album): Avalon is the first solo studio album by American rock musician Sully Erna, released on September 14, 2010. "Avalon" is a combination of work that took Sully Erna almost seven years to complete.
Document 6: 3 Doors Down: 3 Doors Down is an American rock band from Escatawpa, Mississippi, that formed in 1996. The band originally consisted of Brad Arnold (lead vocals/drums), Todd Harrell (bass), and Matt Roberts (lead guitar, backing vocals). They were soon joined by rhythm guitarist Chris Henderson. The band rose to international fame with their first single, "Kryptonite", which charted in the top three on the "Billboard" Hot 100 chart. The band then signed with Republic Records and released their debut album, "The Better Life", in 2000. The album was the 11th-best-selling album of the year and was certified 6x platinum in the United States. They were later joined by drummer Richard Liles, who played during the tour for their first album.
Document 7: Dropbox (band): Dropbox was a five-piece American rock band formed in 2002 in New York City. Their debut album, "Dropbox", was released on the Universal Records label with the help of Sully Erna.
Document 8: Slash (musician): Saul Hudson (born July 23, 1965), better known by his stage name Slash, is a British-American musician and songwriter. He is best known as the lead guitarist of the American hard rock band Guns N' Roses, with whom he achieved worldwide success in the late 1980s and early 1990s. During his later years with Guns N' Roses, Slash formed the side project Slash's Snakepit. After leaving Guns N' Roses in 1996, he co-founded the supergroup Velvet Revolver, which re-established him as a mainstream performer in the mid to late 2000s. Slash has since released three solo albums: "Slash" (2010), featuring an array of famous guest musicians, and "Apocalyptic Love" (2012) and "World on Fire" (2014), recorded with his band, Myles Kennedy and the Conspirators. He returned to Guns N' Roses in 2016, nearly 20 years after he had left.
Document 9: Dropbox (album): Dropbox is the self-titled debut album of the band Dropbox, released on April 13, 2004.
Document 10: Tim Sult: Tim Sult is the guitarist for hard rock band Clutch. He is also the guitarist for an instrumental side project, The Bakerton Group, and an occasional member of the reggae rock / stoner rock band Lionize, as well as recently formed band Deep Swell. Sult has remained the guitarist for Clutch since the group started in 1990.
Document 11: Blameshift: Blameshift is a four-piece rock band from Long Island, New York that started in 2005. The band consists of Jenny Mann, Tim Barbour, Mike Sarkissian and Dan Scofield. The band is recognized for their work ethic, extensive touring history and high energy live show. In 2006 they recorded a self released album, “Drop Down”. The release was followed by over 150 tour dates including three dates on the Warped Tour. In 2007 Blameshift recorded their second album. “The Test” with Michael Birnbaum and Chris Bittner. The album was nationally released through Smart Punk, F.Y.E, Hot Topic, and iTunes. Alternative Press named Blameshift as “Unsigned Band Of The Month” in August 2008. Blameshift won a contest through Taco Bell called “Feed The Beat” in 2008. Michael Birnbaum and Chris Bittner also produced the single, The Sirens Are Set in 2008. Blameshift toured through all of 2008 in the U.S. and Canada with And Then There Was You, and The Material on the Everlasting Sound Tour. At the start of 2009 producer Mike Watts demoed the bands’ Self Titled EP. With touring in between with Sky Tells All and The Material, the release of the EP was put on hold until February 2010. In May 2010 the band raised $5500 through Kickstarter to record with producer / engineer Erik Ron in Hollywood, California. In June 2010 the band signed with Restless Management out of Venice Beach, California.
Document 12: Another Animal: Another Animal was a hard rock supergroup formed by members of Godsmack, Ugly Kid Joe, and Dropbox.
Document 13: Sully Erna: Salvatore Paul "Sully" Erna Jr. (born February 7, 1968) is the American vocalist and guitarist for the American hard rock band Godsmack. He is also a harmonica player, percussionist and pianist, performing these on albums and at live shows. He was ranked 47th in the Top 100 Heavy Metal Vocalists by "Hit Parader".
Document 14: Tony Rombola: Tony Rombola (born November 24, 1964) is an American musician who has been the lead guitarist and backing vocalist for the Boston-based Hard Rock band Godsmack since the mid-1990s. Tony Rombola has been cited as 'an extraodinaire' in the guitar world, by Guitar World magazine, and is cited to be the only guitarist to keep an 'original soloing style' during the nu metal period, earning him the respect of the guitar industry. Rombola is also a guitarist for the side-project band Another Animal, formed at the beginning of 2007, the band released their self-titled debut album in October 2007, and played shows, whilst frontman Sully Erna did a small solo tour.
Document 15: Godsmack: Godsmack is an American rock band from Lawrence, Massachusetts, formed in 1995. The band is composed of founder, frontman and songwriter Sully Erna, guitarist Tony Rombola, bassist Robbie Merrill, and drummer Shannon Larkin. Since its formation, Godsmack has released six studio albums, one EP ("The Other Side"), four DVDs, one compilation album ("Good Times, Bad Times... Ten Years of Godsmack"), and one live album ("Live and Inspired").
ground_truth: Sully Erna