Jelly has performed the late country icon's debut 1993 single several times since Keith's death at 62 in February.

Kevin Winter/ImageDirect, via Getty Images Read more about the life of Toby Keith at the link below.

So, what was the driving force behind Keith's longtime support of the military? Read more: Celebrities' Most Intimate ...

Watch Krystal Keith, daughter of Toby Keith, sing the national anthem before the Oklahoma Sooners took the field.

Hugh McIntyre covers music, with a focus on the global charts. FLORENCE, AZ - APRIL 07: Singer/Songwriter Toby Keith performs during Country Thunder Music ... [+] Festival Arizona - Day 3 on April ...

Jelly Roll has performed Toby Keith's hit "Should've Been a Cowboy" on several occasions since the late country icon's death ...