"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 French singer and songwriter Thomas Schoeffler Jr., live at the Blue Balls Festival, Lucerne, Switzerland, Europe"

"Michael Kiwanuka, British singer and songwriter, live at the Blue Balls Festival, KKL concert hall, Luzern, Canton of Lucerne, Switzerland, Europe"

"British singer and songwriter Jamie Lidell performing live at the Blue Balls Festival, KKL Lucerne concert hall, Luzern, Canton of Lucerne, Switzerland, Europe"

"Ane Brun, Swedish singer-songwriter live at the Blue Balls Festival, KKL venue, Luzern, Canton of Lucerne, Switzerland, Europe"

"British singer-songwriter Elvis Costello, performing live at the Blue Balls Festival, Luzerner Saal KKL concert hall, Luzern, Canton of Lucerne, Switzerland, Europe"

"The Norwegian pop singer Maria Mena, live at the Blue Balls Festival, Lucerne, Switzerland, Europe"

"The British singer-songwriter Josh Kumra performing live at the Blue Balls Festival, KKL Lucerne Concert Hall, Luzern, Canton of Lucerne, Switzerland, Europe"

"British singer and songwriter Jamie Lidell performing live at the Blue Balls Festival, KKL Lucerne concert hall, Luzern, Canton of Lucerne, Switzerland, Europe"

"Dave Pen of the British band Archive, live at the Blue Balls Festival, Lucerne, Switzerland, Europe"

The young British singer and songwriter Bry live at the Blue Balls Festival in Lucerne, Switzerland, Europe

The young British singer and songwriter Bry live at the Blue Balls Festival in Lucerne, Switzerland, Europe