Here is a list of the artists that have more than 20 years between
the first and last entry in the charts. Beware that this table tracks the name
of the artist, so multiple artists with the same name (like Jimmie Rodgers)
will be listed with their total length of career, see the individual artist's pages
for details. The
"most hits" page
shows the same information but ordered by the number of hits each artist has.