Do the children know about Dolly? Our nation’s hospitals should be introducing Dolly Parton to infants immediately after birth, but if the medical community insists on dragging its feet on instituting such a desperately needed program, kids can find out about Dolly from her new a cappella version of “Jolene†featuring Pentatonix. Soon your tweens will be clamoring for the original soundtrack to The Best Little Whorehouse in Texas. Pentatonix provides an upbeat, off-beat backing track to Dolly’s eternally excellent vocals, but, in all honesty, Dolly could sing over deafening construction equipment and still sound like an Appalachian angel.