Star Tracks: Taylor Swift, Blake Lively, Ryan Reynold

– Taylor Swift kicks off South American leg of her Eras Tour in Buenos Aires.

– Blake Lively and Ryan Reynolds enjoy a stylish stroll in N.Y.C.

– Dua Lipa returns to London for a night out.

– Nicole Kidman looks glamorous at the opening of Planet Omega in N.Y.C.

– Jamie Lee Curtis, Tan France, and Brandi Carlile shine at the Out100 Celebration in L.A.

– Lil' Kim performs at the AliExpress Singles' Day pop-up shopping experience in N.Y.C.

– Rachel Zegler strikes a pose at the world premiere of The Hunger Games: The Ballad of Songbirds & Snakes in London.

– Kristen Stewart and Dylan Meyer match in chic styles at the Chanel Academy Luncheon in Los Angeles.

– Leslie Mann and Maude Apatow enjoy a mother-daughter moment at the Chanel Academy Luncheon in L.A.

– Gabrielle Union embraces fall fashion in N.Y.C.'s SoHo neighborhood.