Question: Are both Jennifer Nettles and Aaron Barrett country singer and songwriters?

Context articles: Want To
Joey (Sugarland song)
Sugarland
That Girl (Jennifer Nettles song)
Playing with Fire (Jennifer Nettles album)
Duet All Night Long
Circle of Love (song)
That Girl (album)
Aaron Barrett
Jennifer Nettles

"Want To" is a song co-written and recorded by American country music duo Sugarland.
 It was released in August 2006 as the first single from the album "Enjoy the Ride".
 It was their first single not to feature former member Kristen Hall, although Jennifer Nettles had previously been featured on Bon Jovi's Number One country hit, "Who Says You Can't Go Home", the song was also the first regular Number One hit of Sugarland's career in the U.S., spending two weeks at the top of the "Billboard" Hot Country Songs charts in late 2006.
 The duo's members, Jennifer Nettles and Kristian Bush, wrote the song along with Bobby Pinson.
 The song has sold 856,000 copies in the US as of April 2013.
"Joey" is a song co-written and recorded by American country music duo Sugarland.
 The duo's two members, Jennifer Nettles and Kristian Bush, wrote it along with country singer Bill Anderson.
 It was released in July 2009 as the fourth single from the duo's album "Love on the Inside".
 Sugarland's twelfth single release, it debuted at number 50 on the "Billboard" Hot Country Songs charts in July 2009.
Sugarland is an American country music duo consisting of singer-songwriters Jennifer Nettles (lead vocals) and Kristian Bush (vocals, mandolin, acoustic guitar, and harmonica).
 Sugarland was founded in 2002 by Kristen Hall with Bush and became a trio after hiring Jennifer Nettles as lead vocalist.
"That Girl" is a song co-written and recorded by American country music singer Jennifer Nettles, lead vocalist of the duo Sugarland.
 It was released August 20, 2013 via Mercury Nashville as Nettles' first solo single and the lead single from her debut solo album of the same name.
Playing with Fire is the second studio album by American country music singer Jennifer Nettles.
 It was released on May 13, 2016, by Big Machine Records.
 This is her first album with Big Machine after parting ways with Mercury Nashville.
 Ten of the album's twelve tracks were written or co-written by Nettles.
 Produced by Dann Huff, the album also features a collaboration with singer Jennifer Lopez, titled "My House".
Duet All Night Long is a split EP release by Reel Big Fish and Zolof the Rock & Roll Destroyer.
 It contains six cover songs of which three are performed by each band.
 Both Rachel Minton of Zolof the Rock & Roll Destroyer and Aaron Barrett of Reel Big Fish sing on every track, hence the title of the EP.
 On "Say Say Say", however, the male vocalist is Scott Klopfenstein (the backing singer and trumpeter of Reel Big Fish) instead of Aaron Barrett.
 Klopfenstein also appears in his usual backing role, including a small bit of the lead during "It's Not Easy".
"Circle of Love" is a song written by country singer Dolly Parton.
 It was recorded by country singer Jennifer Nettles in her 2016 album "To Celebrate Christmas".
That Girl is the debut solo album by American country music artist Jennifer Nettles, lead vocalist of the country duo Sugarland.
 It was released on January 14, 2014, by Mercury Nashville.
 The album features 10 songs written or co-written by Nettles and a cover of Bob Seger's "Like a Rock".
 Nettles collaborated with songwriters Butch Walker, Richard Marx and Sara Bareilles, among others.
 The album was produced by Rick Rubin at his Shangri-La Studios in Malibu, California.
Aaron Asher Barrett (born August 30, 1974) is the lead singer, lead guitarist, and primary songwriter of the American ska-punk band Reel Big Fish.
 Prior to forming Reel Big Fish, Barrett played trombone in another ska-punk act, The Scholars, along with future Reel Big Fish bandmates Scott Klopfenstein and Grant Barry.
Jennifer Odessa Nettles (born September 12, 1974) is an American country music singer and songwriter.
 She is best known as the lead singer of the duo Sugarland alongside Kristian Bush.
 Before Sugarland's inception, she also fronted Atlanta-based bands called Soul Miner's Daughter and Jennifer Nettles Band.
 She also charted as a duet partner on the country version of rock band Bon Jovi's 2006 single "Who Says You Can't Go Home", a Number One hit on the "Billboard" country charts.