#ThrowbackDenim–Are social media campaigns the new preferred advertisement? Following in the footsteps of Calvin Klein, who recently had an underwear campaign, Tommy Hilfiger gets behind denim. Coinciding with its True to the Blue spring collection, Hilfiger Denim launches a social media campaign with the hashtag #ThrowbackDenim. Fans of the brand are encouraged to upload an image with the hashtag for a chance to win a trip for two to California. The competition runs until May 9th. Brand ambassadors for the fun new campaign include singer Enrique Iglesias and Ed Westwick, who both took to Instagram with their own #ThrowbackDenim photos.