Question: The country music artist who recorder a cover cersion of Am I That Easy to Forget which reached #11 country in 1960 started out as part of which band as a teenager in the late 1940s? 
Context: How I Feel is the third studio album by Canadian country music artist Terri Clark.  Released in 1998 on Mercury Nashville, the album produced the singles "Now That I Found You", "You're Easy on the Eyes", "Everytime I Cry", and "Unsung Hero".  In the U.S., these singles respectively reached #2, #1, #13, and #47 on the "Billboard" country charts, with "You're Easy on the Eyes" being her first #1 in that country.  On the "RPM" country charts in Canada, they reached #2, #1, #2 and #15.  The album was certified platinum in both countries.  "I'm Alright" was previously recorded by Kim Richey on her 1997 album "Bitter Sweet" while "Unsung Hero" was previously recorded by Tina Arena on her second album In Deep released in 1997. "I Take a Lot of Pride in What I Am" is a song written and performed by American country music artist Merle Haggard.  It was released in October 1968 as the only single from his album "Pride in What I Am".  "I Take a Lot of Pride in What I Am" peaked at number three on the U.S. "Billboard" Hot Country Singles chart.  It reached number-one on the Canadian "RPM" Country Tracks in January 1969.  The song was covered by Dean Martin and released as a single in mid-1969.  A tape recorder version of this song was played at the funeral of late Lynyrd Skynyrd vocalist, Ronnie Van Zant. Mary Frances Penick (December 30, 1931 – September 19, 2004), known as Skeeter Davis, was an American country music singer who sang crossover pop music songs including 1962's "The End of the World".  She started out as part of the Davis Sisters as a teenager in the late 1940s, eventually landing on RCA Victor.  In the late 1950s, she became a solo star. "It Ain't Easy Bein' Easy" is a song written by Mark Gray, Les Taylor and Shawna Harrington-Burkhart, and recorded by American country music artist Janie Fricke.  It was released in August 1982 as the first single from the album "It Ain't Easy".  "It Ain't Easy Bein' Easy" was Janie Fricke's second number one on the country chart as a solo artist.  The single went to number one for one week and spent a total of thirteen weeks on the country chart. Familiar Stranger is the sixth studio album by American country music artist Mark Wills.  Originally recorded for Equity Music Group, it was released on November 4, 2008 by Tenacity Records.  While signed to Equity, Wills released three singles: "Hank", "Take It All Out on Me" and "Days of Thunder", all of which reached the lower regions of the "Billboard" country charts.  ("Hank" was never included on an album.)  After "Days of Thunder", Wills exited the label.  He then signed to Tenacity, who released "The Things We Forget" as its third single, then released the album itself in late 2008.  "Entertaining Angels" was then issued as the fourth single in early 2009.  The fifth single, "Crazy White Boy," was released in late 2009.  The latter three failed to enter the country charts. "Am I That Easy to Forget" is the title of a popular song written by country music singer Carl Belew and W.S. Stevenson and published in 1958.  Belew recorded his song in Nashville on December 17, 1958, and released the single in March 1959, where it reached number nine on the U.S. country music chart.  Other country music artists who have recorded cover versions of the song include: Skeeter Davis (#11 country, 1960); Ernest Tubb (1960); Gene Vincent (1966); George Jones (1967); Patti Page (1968); Jim Reeves (#12 country, 1973); and Prairie Oyster (1991). Kill the Lights is the fifth studio album by American country music artist Luke Bryan.  It was released on August 7, 2015, by Capitol Nashville.  The album's lead single, "Kick the Dust Up", was released to country radio on May 19, 2015. " Strip It Down" was released as the second single from the album on August 4, 2015.  The album's third single, "Home Alone Tonight", was released to country radio on November 23, 2015.  The album's fourth single, "Huntin', Fishin' and Lovin' Every Day" released to country radio on March 14, 2016.  The album's fifth single, "Move" released to country radio on July 25, 2016.  All five singles reached number one on the "Billboard" Country Airplay chart, making Bryan the first country music artist ever to have five number one singles from two albums apiece.  In November 2016, the album's sixth and final single, "Fast", was sent to country radio.  With "Fast" also reaching number one in April 2017, Bryan became the first artist in the chart's history to achieve six number one singles from one album. "(I'm a) One-Woman Man" is a song co-written by American country music artist Johnny Horton and Tillman Franks.  It was originally released as a single by Horton in 1956, whose version peaked at number 7 on the "Billboard" Hot Country Singles chart.  The song was twice recorded by American country music artist George Jones: first released on the album "The Crown Prince of Country Music" retitled "One Woman Man" in 1960, and later as "I'm a One Woman Man" released in November 1988 as the first single from his album "One Woman Man".  It peaked at number 5 on the "Billboard" Hot Country Singles chart in early 1989 and it would be his final Top 10 solo hit.  His final appearance on the Top-10 country singles chart arrived a year later as part of a duet recording with Randy Travis.  In spite of the lack of radio hits as the 1990s dawned Jones remained a popular concert draw for the next two decades and continued to release original recordings into the mid 2000s. Faith in Me, Faith in You is the seventh studio album released by American country music artist Doug Stone.  It was his only album for Columbia Records after leaving Epic Records' roster in 1995.  Although this album produced three singles — "Sometimes I Forget", the title track, and "Born in the Dark" — none of these singles reached Top Ten on the country music charts.  "Sometimes I Forget" peaked at number 41, becoming the first single of his career to miss Top 40 entirely. "Easy Come, Easy Go" is a song written by Aaron Barker and Dean Dillon, and recorded by American country music artist George Strait.  It was released in August 1993 as the lead single from his album of the same title.  The song reached the top of the "Billboard" Hot Country Singles & Tracks (now Hot Country Songs) chart and on the Canadian "RPM" Country Tracks chart.  It peaked at number 71 on the U.S. "Billboard" Hot 100, making it a minor crossover hit.
Answer: the Davis Sisters