Leonardo DiCaprio, Kate Hudson, Drew Barrymore, James Franco, Sting, and dozens of other A-listers honor Martin Scorsese and David Hockney at the LACMA 2013 Art + Film Gala presented by Gucci; Nicole Richie, Rachel Zoe, Balthazar Getty, and more attend the David Webb 65th Anniversary Luncheon; November cover star Lana Del Rey celebrates NYLON's "America Issue" with Wildfox—read up on all this and more from L.A.'s busy weekend in this edition of Last Night's Parties.