From the jaw-dropping looks at the Venice Film Festival to Harry and Meghan's royal appearance in London, these are the best looks of the week.

Lady Gaga

in Valentino Haute Couture at the "A Star is Born" premiere at the Venice Film Festival.

A Star Is Born Red Carpet Arrivals - 75th Venice Film Festivalpinterest
Vittorio Zunino Celotto//Getty Images

Cate Blanchett

in Armani Privé at the "A Star is Born" premiere at the Venice Film Festival.

A Star Is Born Red Carpet Arrivals - 75th Venice Film Festivalpinterest
Andreas Rentz//Getty Images

Claire Foy

in Valentino Haute Couture at the Venice Film Festival opening ceremony and the "First Man" screening in Venice, Italy.

First Man Premiere, Opening Ceremony And Lifetime Achievement Award To Vanessa Redgrave Red Carpet Arrivals - 75th Venice Film Festivalpinterest
Stefania D'Alessandro//Getty Images

Emma Stone

in Louis Vuitton at the Venice Film Festival.

The Favourite Photocall - 75th Venice Film Festivalpinterest
Elisabetta A. Villa//Getty Images

Izabel Goulart

in Philosophy di Lorenzo Serafini and Aquazzura sandals at the Venice Film Festival.

Celebrity Sightings Ahead Of The 75th Venice Film Festivalpinterest
Daniele Venturelli//Getty Images

Meghan Markle

in Judith & Charles at a charity performance of Hamilton in London.

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DAN CHARITY//Getty Images

Naomi Watts

in Prada at the screening of "Roma" at the Venice Film Festival.

Roma Red Carpet Arrivals - 75th Venice Film Festivalpinterest
Stephane Cardinale - Corbis//Getty Images

Naomi Campbell

in Calvin Klein by Appointment on stage receiving the Black Girl Magic award at the Black Girls Rock! Awards at the New Jersey Performing Arts Center.

2018 Black Girls Rock! - Showpinterest
Gilbert Carrasquillo//Getty Images

Clemence Poesy

in Erdem at the Opening Ceremony of the Venice Film Festival.

First Man Premiere, Opening Ceremony And Lifetime Achievement Award To Vanessa Redgrave Red Carpet Arrivals - 75th Venice Film Festivalpinterest
Stefania D'Alessandro//Getty Images

Angelina Jolie

in Ryan Roche out to lunch in Los Angeles.

*EXCLUSIVE* Angelina Jolie and her son Pax grab lunch at Perch restaurant in Los Angelespinterest
JAPZ, ENAV, JOGA//Getty Images