Roy Rogers singing the classic Johnny Mercer song "I'm An Old Cowhand From The Rio Grande" from Roy's film "King Of The Cowboys" (1943).

Lyrics:

I'm an old cowhand from the Rio Grande
And I learned to ride before I learned to stand
I'm a ridin' fool who is up to date
I know every trail in the Lone Star State
'Cause I ride the range in a Ford V-8
Yippee I oh ki-ay, yippee I oh ki-ay

I'm an old cowhand from the Rio Grande
And I come to town just to hear the band
I know all the songs that the cowboys know
'Bout the Big Corral where the dogies go
I learned them all on the radio
Yippee I oh ki-ay, yippee I oh ki-ay

I'm an old cowhand from the Rio Grande
Where the west is wild 'round the borderland
Where the buffalo roam around the zoo
And the Indians'll make you a rug or two
And the old Bar X is just a barbecue
Yippee I oh ki-ay, Yippee I oh ki-ay