Question: In between Adam Gontier and Andy Childs who's highest charting single is "Simple Life"?

Context paragraphs:
Down the Road (Mac McAnally song): "Down the Road" is a song written and recorded by American country music artist Mac McAnally.  McAnally has charted with the song on two separate occasions.  The first of these two versions was released as the second single from his 1990 album "Simple Life", and was a minor chart single for him that year.  Eighteen years later, McAnally re-recorded the song as a duet with Kenny Chesney on Chesney's 2008 album "Lucky Old Sun".  This rendition is also McAnally's highest charting country hit, having reached Number One in February 2009.  This song has also been covered by the Nitty Gritty Dirt Band, Restless Heart, and Larry Stewart as a solo artist.

Adam Gontier: Adam Wade Gontier (born May 25, 1978) is a Canadian singer, songwriter and musician.  He is the lead singer, rhythm guitarist and main songwriter for Saint Asonia, but is best known as the former lead singer, rhythm guitarist and main songwriter of the Canadian rock band Three Days Grace.  Gontier left Three Days Grace on January 9, 2013.  In addition to his work with Three Days Grace, he has been involved in collaborations with other bands including Art of Dying and Apocalyptica.

Andy Childs: Andy Childs (born December 7, 1962 in Memphis, Tennessee) is an American country music singer-songwriter.  In 1993, Childs released one studio album for RCA, which produced three singles on the "Billboard" Hot Country Singles & Tracks chart.  His highest charting single, "Simple Life," peaked at No. 61 in 1994.

Prayer (song): "Prayer" is a song released on August 14, 2002 by the American heavy metal band Disturbed as the first single from their second album, "Believe".  It was inspired by the death of vocalist David Draiman's grandfather as well as various circumstances after the September 11 attacks, and is about a conversation between Draiman and God.  Upon release, many media outlets refused to air the "Prayer" music video, citing supposed similarities between the imagery of the music video and that of the September 11 attacks.  "Prayer" peaked at number-three on two United States airplay charts, "Billboard"'s Mainstream Rock Tracks and Modern Rock Tracks charts, as well as peaking at number-fifty-eight on "Billboard"'s Hot 100 and number-fourteen on the Canadian Singles Chart.  "Prayer" is Disturbed's second highest charting single on the Billboard Hot 100 and their highest charting single on the Modern Rock Tracks chart, and 1 of only 2 of their songs to reach the top 5 on the chart (the other being "Inside the Fire", which peaked at No. 4).

Art of Dying (band): Art of Dying is a Canadian rock band fronted by Jonny Hetherington.  The band is currently signed to Better Noise Records.  Bassist Cale Gontier is the cousin of Adam Gontier, the lead singer of Saint Asonia and former lead singer of Three Days Grace.  Prior to joining the band, Gontier and guitarist Tavis Stanley played in another band, Thornley.

The Saints discography: The discography of Australian rock group, The Saints consists of thirteen studio albums, seventeen singles, six EPs, two live albums and ten compilation albums.  The Saints began in 1974 as punk rockers and released their first single, "(I'm) Stranded", in September 1976 on their own Fatal Records label.  They were signed to EMI and released their debut album in February 1977, "(I'm) Stranded".  Mainstay founder, Chris Bailey, is the principal songwriter and record producer.  Their sound became more R&B and pop rock.  Their highest charting album, "All Fools Day" peaked in the Top 30 on the Australian Kent Music Report Albums Chart in April 1986.  Their highest charting single was a cover version of The Easybeats' hit "The Music Goes Round My Head" issued in December 1988, which peaked in the Top 40 on the Kent Music Report Singles Chart.

Animal Nitrate: "Animal Nitrate" is the third single from the debut album by Suede released on Nude Records in 1993.  It charted at number seven on the UK Singles Chart, making it the highest charting single from the album.  The song was the band's highest charting single in Ireland, peaking at no. 11.  The single was previewed to the nation at the 1993 Brit Awards.  The song was also later nominated for Best British Single at the 1994 Brit Awards.

Kinky Afro: "Kinky Afro" is a 1990 single by Happy Mondays.  It was the second single from the band's third album "Pills 'n' Thrills and Bellyaches".  The song was the band's biggest hit in the United States hitting #1 on the Billboard Modern Rock chart.  It also hit #5 in the UK, tied with "Step On" as the band's highest charting single there.  "Kinky Afro" was the band's highest charting single in Australia, peaking at #63 on the ARIA singles chart in March 1991.  The song's chorus paraphrases the Labelle song "Lady Marmalade".

Nicole Richie: Nicole Camille Richie (born Nicole Camille Escovedo; September 21, 1981) is an American fashion designer, author, actress and television personality.  Richie rose to prominence for her role in the Fox reality television series, "The Simple Life", alongside her childhood best friend and fellow socialite Paris Hilton, which lasted five seasons.  "The Simple Life" was a hit for the Fox network, premiering with 13 million viewers.  Richie's personal life attracted significant media attention during "The Simple Life"' s five-year run, and she was a constant fixture of tabloid journalism before and after her appearance.

Ed Harcourt discography: This is the discography of the English singer-songwriter Ed Harcourt.  To date, Harcourt has released six studio albums, two compilation albums, three EPs, and fourteen singles (eleven of which have been released commercially).  Harcourt's debut album "Here Be Monsters" was released in June 2001, and peaked on the UK Albums Chart at #84.  His second album "From Every Sphere", released in February 2003, became his highest charting album at #39, and also features his highest charting single "All of Your Days Will Be Blessed".  Released only one year later was his third album "Strangers", which features the single "This One's for You", Harcourt's second-highest charting single at #41.  Two further singles followed throughout the end of 2004 and 2005: "Born in the '70s" and "Loneliness".  A download-only compilation entitled "Elephant's Graveyard", collecting B-sides and rarities from 2000 to 2005, was issued in summer 2005.  Harcourt's fourth studio album "The Beautiful Lie" was released in June 2006.

Supporting paragraphs: Adam Gontier Andy Childs
Answer: Andy Childs