Dolly Parton is a singer .
With steady success during the remainder of the 1960s -LRB- both as a solo artist and with a series of duet albums with Porter Wagoner -RRB- , her sales and chart peak came during the 1970s and continuing into the 1980s ; Parton 's subsequent albums in the later part of the 1990s were lower in sales .
Dolly Parton