Eva Mendes, watch your back — Vanessa Hudgens has a crush on Ryan Gosling. At the Oster Media Presents Leila Shams party at Westway on Thursday night, the petite former “High School Musical” actress was cooing about the “Drive” star, currently dating Mendes. When asked about her Oscar picks, Hudgens was overheard saying: “I just adore Ryan Gosling. I love him, and I loved that movie ‘Drive.’ ” We didn’t have the heart to tell her that neither “Drive” nor Gosling’s performance in the film was nominated. Others there to kick off Fashion Week were Rose McGowan, Eve, Elisabeth Rohm, Jane and Avi Oster and Matthew McConaughey and his baby mama, Camila Alves.