What rock band topped the charts with their cover of "La Bamba" in 1987 and had a band member with a guest appearance on Dolly Parton's "Treasures" in 1996
Treasures (Dolly Parton album):  Among the selections were work by Merle Haggard, Jeanne Pruett, Neil Young, Kris Kristofferson, Cat Stevens and Mac Davis. Treasures (Dolly Parton album):  "Treasures" featured a number of famous guest artists, including Ladysmith Black Mambazo, John Popper of Blues Traveler, David Hidalgo of Los Lobos, and Alison Krauss.
i don't know