"So Round, So Firm, So Fully Packed" is a 1947 song by Merle Travis

Merle Travis

Merle Robert Travis was an American country and western singer, songwriter, and musician born in Rosewood, Kentucky. His lyrics often discussed the life and exploitation of coal miners. Among his many well-known songs are "Sixteen Tons", "Re-Enlistment Blues" and "Dark as a Dungeon"...

, written by Travis, Eddie Kirk, and Cliffie Stone

Cliffie Stone

Cliffie Stone , born Clifford Gilpin Snyder, was an American country singer, musician, record producer, music publisher, and radio and TV personality who was pivotal in the development of California’s thriving country music scene after World War II during a career that lasted six decades...

. The song would be his second number one on the Folk Juke Box charts where it stayed at number one for 14 weeks and a total of 21 weeks on the chart. In the same year it was a #3 hit for Johnny Bond

Johnny Bond

Cyrus Whitfield Bond , known professionally as Johnny Bond, was a popular American country music entertainer of the 1940s through the 1960s.-Biography:...

 and a #5 hit for Ernest Tubb

Ernest Tubb

Ernest Dale Tubb , nicknamed the Texas Troubadour, was an American singer and songwriter and one of the pioneers of country music. His biggest career hit song, "Walking the Floor Over You" , marked the rise of the honky tonk style of music...

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Ricky Skaggs

Ricky Skaggs

Rickie Lee "Ricky" Skaggs is a country and bluegrass singer, musician, producer, and composer. He primarily plays mandolin; however, he also plays fiddle, guitar, and banjo.-Early career:...

 covered the song on his 1981 album Waitin' for the Sun to Shine

Waitin' for the Sun to Shine

Waitin' for the Sun to Shine is the third full-length studio album from Ricky Skaggs. It was released in 1981 on Epic Records. Skaggs himself produced the album, and played on all the songs....

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The slogan "So round, so firm, so fully packed" was used in Lucky Strike

Lucky Strike

Lucky Strike is a brand of cigarette owned by the R.J. Reynolds Tobacco Company and British American Tobacco groups. Often referred to as "Luckies", Lucky Strike was the top selling cigarette in the United States during the 1930s.- History :...

cigarette advertising of the time, since at least 1945.