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

"Jennah Bell, American singer-songwriter live at the Blue Balls Festival, Pavillon am See, Luzern, Canton of Lucerne, Switzerland, Europe"

"The British singer-songwriter James Blunt performing live at the Blue Balls Festival, Lucerne, Switzerland, Europe"

"The Swiss singer-songwriter Lina Button, performing live at the Schueuer in Lucerne, Switzerland, Europe"

"The Swiss singer-songwriter Lina Button, performing live at the Schueuer in Lucerne, Switzerland, Europe"

"The Swiss singer-songwriter Lina Button, performing live at the Schueuer in Lucerne, Switzerland, Europe"

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

Swiss singer and songwriter Ishantu live at the Schüür Lucerne, Switzerland, Europe

"The British singer and songwriter John Smith performing live at the Blue Balls Festival, Lucerne, Switzerland, Europe"

Swiss singer and songwriter Ishantu live at the Schüür Lucerne, Switzerland, Europe

Swiss singer and songwriter Ishantu live at the Schüür Lucerne, Switzerland, Europe

"American singer and songwriter John Legend, performing live at the Blue Balls Festival, Luzerner Saal KKL concert hall, Luzern, Canton of Lucerne, Switzerland, Europe"

The American singer and songwriter Everlast live at the Schüür Lucerne, Switzerland, Europe