Arnold Rufus McCuller is an American vocalist, record producer, born and raised in Cleveland, Ohio. While establishing his own career as a singer, and working as a very busy session musician, McCuller has become best known for his work as a back-up singer for famous artists with long careers, including Phil Collins, Beck, and Bonnie Raitt, and Todd Rundgren. He has toured for thirty years with James Taylor and is an audience favorite for his featured vocal parts on the songs "Shower the People", "I Will Follow", and "Is That the Way You Look". He has also toured extensively with Collins and is one of the main lead vocalists on the live version of "Easy Lover". McCuller has had numerous acting parts in films; in particular he has gained notoriety in movies with musical roles. In 2010 McCuller joined the Troubadour Reunion Tour supporting James Taylor and Carole King.

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McCuller appeared in the film The Sum of All Fears singing the "The Star-Spangled Banner". Although he did not appear onscreen in Duets with Huey Lewis and Gwyneth Paltrow, his vocals were blended with those of actor Andre Braugher to make a composite singing voice for the character "Reggie Kane". In the film, Reggie Kane sang with Paul Giamatti on "Try a Little Tenderness" and performed an a cappella version of "Free Bird". Crossroads, with Ry Cooder.

Lyle Pearce Lovett (born November 1, 1957) is an American singer-songwriter and actor. Active since 1980, he has recorded thirteen albums and released 21 singles to date, including his highest entry, the number 10 chart hit on the U.S. Billboard Hot Country Songs chart, "Cowboy Man". Lovett has won four Grammy Awards, including Best Male Country Vocal Performance and Best Country Album. It's Not Big It's Large was released in 2007, where it debuted and peaked at number 2 on the Top Country Albums chart. A new studio album, Natural Forces, was released on October 20, 2009 by Lost Highway Records.

Lovett was born in North Harris County, Texas, in the community of Klein, the son of William Pearce and Bernell Louise (née Klein) Lovett, a marketing executive and training specialist, respectively. He was raised in the Lutheran Church–Missouri Synod. Lovett attended Texas A&M University, where he studied German and journalism. It is a common misconception that Lyle and Robert Earl Keen were roommates at A&M. They were not. However, they lived across from each other on Church St. in College Station, became good friends, and wrote "The Front Porch Song" together, which both went on to record.

James Vernon Taylor (born March 12, 1948) is an American singer-songwriter and guitarist. A five-time Grammy Award winner, Taylor was inducted into the Rock & Roll Hall of Fame in 2000.

Taylor achieved his major breakthrough in 1970 with the #3 single "Fire and Rain" and had his first #1 hit the following year with "You've Got a Friend", a recording of Carole King's classic song. His 1976 Greatest Hits album was certified Diamond and has sold 12 million US copies. Following his 1977 album, JT, he has retained a large audience over the decades. His commercial achievements declined slightly until a big resurgence during the late 1990s and 2000s, when some of his best-selling and most-awarded albums (including Hourglass, October Road and Covers) were released.

James Taylor was born at Massachusetts General Hospital in Boston, Massachusetts, on March 12, 1948, where his father, Isaac M. Taylor, was a resident physician. His father was from a well-off family of Southern Scottish ancestry. His mother, the former Gertrude Woodard, had studied singing with Marie Sundelius at the New England Conservatory of Music and was an aspiring opera singer before the couple's marriage in 1946. James was the second of five children, the others being Alex (1947-1993), Kate (born 1949), Livingston (born 1950), and Hugh (born 1952).

John Roger Stephens (born December 28, 1978), better known by his stage name John Legend, is an American singer-songwriter and actor. He has won nine Grammy Awards, and in 2007, he received the special Starlight award from the Songwriters Hall of Fame.

Prior to the release of his debut album, Stephens' career gained momentum through a series of successful collaborations with multiple established artists. Stephens added his voice to those of other artists, assisting in them reaching chart-topper hits. He lent his voice to Kanye West's All of the Lights, on Slum Village's "Selfish" and Dilated Peoples' "This Way". Other artists included Jay-Z's "Encore", and he sang backing vocals on Alicia Keys' 2003 song "You Don't Know My Name" and Fort Minor's "High Road." Stephens played piano on Lauryn Hill's "Everything Is Everything."

Stephens was born on December 28, 1978, in Springfield, Ohio. He is the son of Phyllis, a seamstress, and John Mills, a factory worker and former National Guardsman. Throughout his childhood, Stephens was homeschooled on and off by his mother. At the age of four, he began playing the piano and at the age of seven, he performed with his church choir. When he was ten, his parents divorced, causing his mother to suffer a breakdown. At the age of 12, Stephens attended North High School, from which he graduated four years later. He graduated salutatorian.

Jennifer Nettles (born September 12, 1974 in Douglas, Georgia) is an American country music artist. She is known primarily for her role as lead vocalist of the duo Sugarland alongside Kristian Bush. Before Sugarland's inception, she also fronted Atlanta, Georgia-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.

Nettles is a judge on American Broadcast Company's Duets which premiered on May 24, 2012.

Nettles began performing at school assemblies, her Southern Baptist church, and in community theater. She was also a member of Georgia 4-H's Clovers & Company performing arts group from 1986 to 1993.

Nettles studied Sociology and Anthropology at Agnes Scott College in Decatur, Georgia and graduated in 1997. While a student there, Nettles and Cory Jones (who at the time was studying classical guitar at the University of Georgia) formed the group Soul Miner’s Daughter. Performing as both an acoustic duo and with a band, they released two albums: The Sacred and Profane in 1996 and Hallelujah in 1998, both of which were composed of songs written collaboratively by Jones and Nettles. Soul Miner's Daughter was invited to perform at the Atlanta installment of Lilith Fair in 1999.