Dolly Par­ton has had her fair share of col­lab­o­ra­tions, but there are two peo­ple in the indus­try she has not had a chance to work with yet — Lady Gaga and Madonna!  When asked about par­tic­i­pat­ing in a duet with either artist she says, “never say never… (but) it’s not some­thing [she’s] going after.” Dolly also jokes that in since they each are “out­ra­geous,” a project together “might just be overkill.”

What other artists  do you think would be an off the wall collaboration?