Nancy Sinatra: I lacked the confidence to pursue a big career

Nancy Sinatra (Andy Butterton/PA)

Nancy Sinatra has said she lacked the confidence to pursue a “big career” in showbusiness.

The singer, daughter of famous crooner Frank Sinatra, established herself as a musical force in her own right during the 60s with the release of her signature hit These Boots Are Made for Walkin’ and the title song of the James Bond film You Only Live Twice.