Lars "Lasse" Lönndahl, born August 19, 1928, is a Swedish singer and actor, born in Stockholm. He is considered the most well-known Swedish singer of the 1950s and 1960s with nicknames including "The Swedish Frank Sinatra" and "World's Oldest Teenager". Even though by the mid 1970s his career had slowed down, he is still considered arguably Sweden's most popular singer of all t ... Show More