"Chattanooga Choo Choo" is a 1941 song that was written by
Mack Gordon and composed by Harry Warren. It was originally
recorded as a big band/swing tune by Glenn Miller and His
Orchestra and featured in the 1941 movie Sun Valley Serenade      
and received a gold record, presented by RCA Victor in 1942
(below) for sales of 1.2 million copies.  

(L to R) Paul Douglas, W. Wallace Early and Glenn Miller, February 10, 1942.        
    

Alton Glen "Glenn" Miller (March 1, 1904 – December 15, 1944)

Billboard magazine wrote that the song “What’d I Say’’ was "the strongest pop
record that the artist has done to date". Within weeks it topped out at number
one on Billboard’s R&B singles chart, number six on the Billboard Hot 100, and
it became Charles’ first gold record. It also became Atlantic Records’ best-
selling song at the time.

RCA Records received 1 million advance orders for “Love Me Tender”,
making it a gold record before it was even released.

"Catch a Falling Star", written by Paul Vance and Lee Pockriss,was released
by Perry Como in 1957. It was his last #1  on the Billboard  “Most Played by
disc Jockeys" chart but not in the overall top 100, where it reached #2. It
was the first single to receive a gold record certification, on March 14,
1958. The record won Como the 1959 Grammy Award for Best Vocal
Performance, Male.