Under the communist regime, rock and roll was banned; rock and roll was too western, too free. However an underground rock scene grew and musicians played for small crowds in strange obscure little clubs and in the safety of country houses. The underground scene found international fame with the imprisonment of the rock group the Plastic People of the Universe following a 1970s show. After the fall of the Iron Curtain, Vaclav Havel, a devoted rock fan, became president and invited Frank Zappa to play in Prague and then attempted to name him as his special ambassador to the U.S; Zappa became a cultural attaché. The independent Rock and roll scene has flourished in the capital of Prague ever since and the city offers many different music venues to get your fix of a little bit of good ole rock and roll.