Question: What singer of "Harper Valley PTA" had a song covered by Hoodoo Gurus?

full_context: Document 1: Dolly Parton: Dolly Rebecca Parton Dean (born January 19, 1946) is an American singer, songwriter, multi-instrumentalist, record producer, actress, author, businesswoman, and philanthropist, known primarily for her work in country music. After achieving success as a songwriter for others, Dolly Parton made her album debut in 1967, with her album "Hello, I'm Dolly". With steady success during the remainder of the 1960s (both as a solo artist and with a series of duet albums with Porter Wagoner), her sales and chart peak came during the 1970s and continuing into the 1980s; Parton's subsequent albums in the later part of the 1990s were lower in sales. However, in the new millennium, Parton achieved commercial success again and has released albums on independent labels since 2000, including albums on her own label, Dolly Records.
Document 2: Jeannie C. Riley: Jeannie C. Riley (born Jeanne Carolyn Stephenson, October 19, 1945) is an American country music and gospel singer. She is best known for her 1968 country and pop hit "Harper Valley PTA" (written by Tom T. Hall), which missed (by one week) becoming the "Billboard" Country and Pop number one hit at the same time. In subsequent years, she had moderate chart success with country music, but never again duplicated the success of "Harper Valley PTA". She became a born-again Christian and began recording gospel music during the late 1970s.
Document 3: Hoodoo Gurus discography: Australian rock group Hoodoo Gurus have released nine studio albums, thirty-six singles, two extended plays, six compilation albums and four video albums. Formed in January 1981, the band was originally known as Le Hoodoo Gurus for the release of their first single, "Leilani", in October 1982. As Hoodoo Gurus, the band signed with Big Time Records and premiered their debut album, "Stoneage Romeos", in March 1984. Also issued in the United States through A&M Records, the record remained atop the Alternative/College Albums Chart for four consecutive weeks, with it also becoming one of the most played albums of that year on the college network. The group's subsequent albums, "Mars Needs Guitars!", "Blow Your Cool!" and "Magnum Cum Louder", all reached the "Billboard" 200.
Document 4: Blue Cave (album): Blue Cave or In Blue Cave was the Australian rock group Hoodoo Gurus' seventh studio album. The album was nominated for 'Best Pop Release' at the 1996 ARIA Awards. The album was co-produced with Charles Fisher, who had produced the band's second album, "Mars Needs Guitars!", in 1985; Paul McKercher was the sound engineer and the Silverchair producer Kevin Shirley mixed the tracks.
Document 5: Harper Valley PTA (film): Harper Valley PTA is a 1978 American comedy film inspired by the popular 1968 country song "Harper Valley PTA" written by Tom T. Hall and performed by country singer Jeannie C. Riley. The film starred Barbara Eden, Nanette Fabray, Ronny Cox, Louis Nye and Susan Swift, directed by Richard Bennett, and was mainly released to drive-in theaters throughout the summer of 1978. The film has a cult following in fans of the original song.
Document 6: Armchair Gurus: Armchair Gurus is the third compilation album by Australian rock group Hoodoo Gurus. It was originally released as a 2-CD set, to coincide with the band's 1997 farewell tour of Australia (the 'Spit The Dummy' tour). It was also released separately with "Electric Chair", the album features seventeen Hoodoo Gurus' ballads and slower songs whilst "Electric Chair" contains seventeen party tracks. The double set contains two tracks not previously found on Gurus' albums and five totally new songs including the single "The Real Deal". The album went gold.
Document 7: Tammy Wynette: Tammy Wynette (born Virginia Wynette Pugh; May 5, 1942 – April 6, 1998) was an American country music singer-songwriter and one of country music's best-known artists and biggest-selling female singers.
Document 8: Amy Grant: Amy Lee Grant (born November 25, 1960) is an American singer, songwriter, musician, author and media personality. She is known for performing contemporary Christian music (CCM) and for a successful crossover to pop music in the 1980s and 1990s. She has been referred to as "The Queen of Christian Pop".
Document 9: Hoodoo Gurus: Hoodoo Gurus (referred to as the Gurus by fans) are an Australian rock band, formed in Sydney in 1981, by the mainstay Dave Faulkner (songwriter, lead singer and guitarist) and later joined by Richard Grossman (bass), Mark Kingsmill (drums), and Brad Shepherd (guitar, vocals, harmonica). Their popularity peaked in the mid to late 1980s with albums "Mars Needs Guitars!", "Blow Your Cool!" and "Magnum Cum Louder".
Document 10: Leilani (song): "Leilani" was the first single by iconic Australian rock group Hoodoo Gurus when they were called Le Hoodoo Gurus and was released on Phantom Records in October 1982. It had been written by all four Gurus: James Baker, Dave Faulkner, Roddy Radalj and Kimble Rendall. Rendall left shortly before its release and, not long after, the band dropped the 'Le' to become Hoodoo Gurus. Le Hoodoo Gurus were noted for having three guitars and no bass player, creating a distinctive, layered sound. This was captured on "Leilani", which told the story of a maiden sacrificed to the gods and an erupting volcano while her true love looked on helplessly. The song was later released on Hoodoo Gurus' first album "Stoneage Romeos" (1984).
Document 11: Sara Jordan Powell: Sara Jordan Powell (born October 6, 1938) is an American gospel musician. Her first works, "Touch Somebody's Life" and "When Jesus Comes," were released in 1972, and got significant radio airtime. She has released an album that was produced by James Cleveland, "Touch Somebody's Life," which came out in 1975 on Savoy Records. Powell released four more albums on that label, 1980's "I Must Tell Jesus", 1990's "Sara Jordan Powell" and "When Jesus Comes to Stay," and 1995's "The Soul of Sara Jordan Powell." Subsequently, she released one album with Compendia Music Group that same year, "Live in Houston." Her music even has been performed at the White House. She performed in 1979 for President Jimmy Carter, and she was joined by Chuck Berry, Billy Eckstine, Evelyn "Champagne" King, and Andraé Crouch. President Ronald Reagan appointed her to serve on the Year of the Bible Committee. She got the opportunity to minister to President Bill Clinton in Memphis, Tennessee, at the request of Bishop Louis Henry Ford, along with Dr. Vernard Johnson.
Document 12: The Generation Gap (song): "The Generation Gap" was a single by Australian rock group Hoodoo Gurus. It was released on RCA Records in 1988 as a single-only release. It was written by Charlie Craig, Betty Craig, Jim Hayner and was a cover of Jeannie C. Riley's 1970 country song. The B-side, "Jungle Bells" was written by Dave Faulkner.
Document 13: You Open My Eyes: "You Open My Eyes" is a single by iconic Australian rock group Hoodoo Gurus which reached #43 on the ARIA Singles Charts. It was released on BMG in February, 1994; and was written by Brad Shepherd. This was the first Hoodoo Gurus single that was not written or co-written by Dave Faulkner. The B side, "Something I Forgot to Say", was written by Faulkner. The second B side was a cover of The Victims' "Television Addict" written by James Baker and Faulkner (both were members of The Victims and of Hoodoo Gurus). The music video for "You Open My Eyes" was directed by former Guru, Kimble Rendall and was their most expensive to date.
Document 14: The Gap Band: The Gap Band was an American R&B and funk band which rose to fame during the 1970s and 1980s. With the nucleus consisting of brothers Charlie, Ronnie, and Robert Wilson. The band is named after streets (Greenwood, Archer, and Pine) in the historic Greenwood neighborhood in their hometown of Tulsa, Oklahoma. The group shortened its name to "The Gap Band" in 1973. After 43 years together, they retired in 2010.
Document 15: Crystal Gayle: Crystal Gayle (born Brenda Gail Webb; January 9, 1951) is an American country music singer. Best known for her 1977 country-pop crossover hit song, "Don't It Make My Brown Eyes Blue", she had twenty #1 country hits during the 1970s and 1980s (18 on "Billboard" and 2 on "Cashbox") and six albums certified gold by the Recording Industry Association of America. Gayle became the first female artist in country music history to reach platinum sales, with her 1977 album "We Must Believe in Magic". Also noted for her nearly floor-length hair, she was voted one of the 50 most beautiful people in the world by "People" magazine in 1983. She is the younger sister of the country singer-songwriter Loretta Lynn and the singer Peggy Sue and a distant cousin of singer Patty Loveless. Gayle is a member of the Grand Ole Opry and has a star on the Hollywood Walk of Fame, near Lynn's star.
ground_truth: Jeannie C. Riley