"The young Scottish singer-songwriter Nina Nesbitt, performing live at the Blue Balls Festival, Lucerne, Switzerland, Europe"

"The American singer and songwriter Keb Mo, performing live at the Blue Balls Festival, Lucerne, Switzerland, Europe"

"The American singer and songwriter Keb Mo, performing live at the Blue Balls Festival, Lucerne, Switzerland, Europe"

"The American singer and songwriter Keb Mo, performing live at the Blue Balls Festival, Lucerne, Switzerland, Europe"

Lianne La Havas, young British soul singer, live at the Blue Balls Festival in Lucerne, Switzerland, Europe

"The Dutch pop and jazz singer Caro Emerald performing live at the Blue Balls Festival, Lucerne, Switzerland, Europe"

"The British singer songwriter Jon Kenzie playing live outside KKL Plaza at the Blue Balls Festival, Lucerne, Switzerland, Europe"

"The British singer songwriter Jon Kenzie playing live outside KKL Plaza at the Blue Balls Festival, Lucerne, Switzerland, Europe"

"The British singer songwriter Jack Savoretti playing live outside KKL Plaza at the Blue Balls Festival, Lucerne, Switzerland, Europe"

"Henning Wehland, singer of the German band """"Sohne Mannheim"""", performing live at the Blue Balls Festival, Lucerne, Switzerland, Europe"

"The British singer songwriter Jack Savoretti playing live outside KKL Plaza at the Blue Balls Festival, Lucerne, Switzerland, Europe"

"The British singer songwriter Jack Savoretti playing live outside KKL Plaza at the Blue Balls Festival, Lucerne, Switzerland, Europe"

The Swiss musician Andrea Bignasca live at the Blue Balls Festival Lucerne, Switzerland, Europe