Question: Which musician that Imperial Records worked with toured with Elvis Presley?
Context: Elvis Presley's guitars were a major component of the iconic rock and roll image created by Elvis Presley that revolutionized popular culture in the 1950s and 1960s.  It is impossible to gauge the impact of that image on millions of young people around the world who were inspired to learn to play guitar after watching Presley in performance, on television, or in films.  Although not known for his abilities as a guitarist, Presley had a profound musical influence on some of the most important rock and roll artists to emerge since the 1950s, including Buddy Holly, John Lennon, Paul McCartney, George Harrison, Bob Dylan, and Bruce Springsteen.  The extent of Presley's impact on their lives and music is captured in John Lennon's famous quote: "Before Elvis, there was nothing." Slim Whitman (January 20, 1923 – June 19, 2013), born as Otis Dewey Whitman Jr, was an American country music and western music singer-songwriter and instrumentalist known for his yodeling abilities and his smooth, high, three-octave-range falsetto in a style christened as "countrypolitan".  He stated that he had sold in excess of 120 million records.  In the 1950s Whitman toured with Elvis Presley as the opening act.  In the 1990s a new generation was exposed to Whitman through his songs featured in the film "Mars Attacks! "; his iconic "Indian Love Call" would kill the invading Martians every time the record was played. Lewis Robert "Lew" Chudd (July 11, 1911 – June 15, 1998) was an American record label and radio executive who founded Imperial Records in 1946.  The record company was influential in the development of rock and roll, with a roster of musicians including Fats Domino, Slim Whitman, Chris Kenner, Ricky Nelson and others. "Love Me Tender" is a 1956 song recorded by Elvis Presley and published by Elvis Presley Music from the eponymous 20th Century Fox film.  The words and music are credited to Ken Darby under the pseudonym "Vera Matson", the name of his wife, and Elvis Presley.  The RCA Victor recording by Elvis Presley was no. 1 on both the "Billboard" and "Cashbox" charts in 1956.  The song was adapted from the tune of "Aura Lee", a sentimental Civil War ballad.  The song is also featured in many other films such as "FM, Touched By Love, This is Elvis, Porky's Revenge, Wild at Heart, Die Hard 2, Honeymoon in Vegas, Backbeat, Gaudi Afternoon, Machine Gun Molly, , William Eggleston in the Real World, California Dreamin', Love in Space, Devil's Due, Just Before I Go," and "90 Minutes in Heaven." "Too Much" is a #1 song recorded in a hit version by Elvis Presley and published by Elvis Presley Music in 1956.  It was written by Bernard Weinman and Lee Rosenberg.  It was first recorded in 1954 by Bernard Hardison on Republic Records.  Elvis Presley recorded the song in September 1956 and first performed it on January 6, 1957 on CBS-TV's "The Ed Sullivan Show."  Released as a single, Presley's "Too Much" reached number one on both the Cashbox and Billboard sales charts and went to number three on the R&B chart.  The single peaked at number two on the then-named Top 100 chart, the main Billboard pop chart. Singer Presents Elvis Singing Flaming Star and Others is the thirty-third album by American singer and musician Elvis Presley, released by RCA Records in stereo, PRS 279, in October 1968.  It spent five months available only at select retail stores featuring products by the Singer Sewing Machine Company as a promotional tie-in with Presley's upcoming Christmas television special on the NBC network, which Singer had sponsored.  It was reissued for normal retail channels as Elvis Sings Flaming Star in March 1969, becoming the first Elvis Presley budget album on the RCA Camden label, catalogue CAS 2304.  The 1969 release peaked at number 96 on the "Billboard" 200 album chart.  It was certified Gold on July 15, 1999, and Platinum on January 6, 2004, by the Recording Industry Association of America. Fool's Gold Loaf is a sandwich made by the Colorado Mine Company, a restaurant in Denver, Colorado.  The sandwich consists of a single warmed, hollowed-out loaf of bread filled with the contents of one jar of creamy peanut butter, one jar of grape jelly, and a pound of bacon.  The sandwich's connection to Elvis Presley is the source of its legend and prolonged interest.  According to "The Life and Cuisine of Elvis Presley", it was the focus of a midnight sandwich run by Elvis Presley and his friends.  Taking his private jet from Graceland, Presley and his friends purchased 30 of the sandwiches and spent two hours eating them and drinking Perrier and champagne before flying home.  The story became legend and the sandwich became the subject of continued media interest and part of numerous cookbooks, typically focused around Presley's love of food. The Complete Elvis Presley Masters is a box set covering most of American singer and musician Elvis Presley's recording career, released on October 19, 2010 by RCA Records/Legacy Recordings.  The box set contains 711 original master recordings as recorded during Elvis' lifetime and 103 additional rare recordings, contained on 30 compact discs.  The set omits the recordings made for the 1977 "Elvis in Concert" TV special and album. Elvis: As Recorded at Madison Square Garden is a live musical album recorded by American singer and musician Elvis Presley and released in June 1972 by RCA Records peaking on the charts in July 1972.  Recorded at the Madison Square Garden arena in New York City on Saturday June 10, 1972, the concert, and the subsequent album, were promoted as being Presley's first live concerts in the Big Apple since the 1950s.  It was certified Gold on August 4, 1972, Platinum on May 20, 1988, 2x Platinum on March 27, 1992 and 3x Platinum on July 15, 1999 by the RIAA.  Along with "" it ranked as the top 1970's RCA live album by Elvis Presley. Elvis / Elvis Presley No. 2 is the second studio album by American singer and musician Elvis Presley, released by RCA Victor in October 1956 in mono.  Recording sessions took place on September 1, September 2, and September 3 at Radio Recorders in Hollywood, with one track left over from the sessions for Presley's debut album at the RCA Victor recording studios on January 30 in New York.  It spent four weeks at #1 on the "Billboard" Top Pop Albums chart that year, making Presley the first recording artist to have both albums go straight to number one in the same year.  It was certified Gold on February 17, 1960, and Platinum on August 10, 2011, by the Recording Industry Association of America.
Answer: Slim Whitman