Daughter of Nathalie Baye and Johnny Hallyday, Laura Smet first chose to express herself through her mother. Laura Smet made her acting debut in 2002 in Xavier Giannoli's film Les Corps Impatients. In 2004, Laura Smet received the Prix Romy Schneider, awarded each year to a rising star of French cinema. Following her father's health problems in December 2009, Laura Smet performed a duet with David Hallyday entitled "On se fait peur". Laura Smet thus paved the way for a possible career as a singer, in addition to the acting career she had begun in the best possible way.