Wynonna Judd and her mother NAOMI have one musical ambition left to fulfil - the country stars are desperate to record a duet with U2 rocker Bono.
The Judds were one of the most popular country acts of the 1980s, selling millions of records worldwide before a bout of ill health forced Naomi to retire.
They have played a number of comeback shows over the last few years and thrilled fans in 2010 with a reunion tour.
The duo is set to give up touring again after its current U.S. trek comes to an end, but both musicians would both love to finish their career by collaborating with Irish singer Bono.
Naomi tells Larry King, "There are a couple of people like Bono, we haven't worked with Bono, but U2 are friends of ours..."
Wynonna adds, "I've sung with the best. The one that's left is Bono... He's a stylist and he is unique, and his passion is unparallelled for humanity... He's a poet."