US model Lily Aldridge has been unveiled as the face of Ralph Lauren's new ad campaign.

Aldridge revealed the news on social media, posting '20 years ago my gorgeous sister @saffronaldridge launched @laurenralphlauren with @ralphlauren!! As a young girl it was a dream to follow in her footsteps as a woman & model!! Thank you to everyone at @laurenralphlauren @ralphlauren @davidlauren @kevincarrigram @maiajames for making my dreams come true!'.