Allison Williams at the "Schiaparelli and Prada: Impossible Conversations" Costume Institute Gala at The Metropolitan Museum of Art

Allison Williams with hair by Sam Leonardi and makeup by Vanessa Scali

Lena Dunham in The L Magazine

Lena Dunham with hair by Sam Leonardi

Sam Leonardi's "TRESemmé Get the Look: Volume that Lasts"

 

Hair by Sam Leonardi

Lena Dunham in The Guardian Weekend

Lena Dunham with hair by Sam Leonardi

Shay Mitchell at the Seventeen Magazine Cover Signing at Barnes & Noble

Shay Mitchell with hair by Sam Leonardi

TRESemme "Split Remedy" Campaign

Hair by Sam Leonardi

Allison Williams Performs at the "Sing Out, Raise Hope" Benefit Concert

Allison Williams with hair by Sam Leonardi

Allison Williams at the CFDA and Vogue Fashion Fund Awards

Allison Williams with hair by Sam Leonardi

Allison Williams at the American Museum of Natural History Gala

Allison Williams with hair by Sam Leonardi

Anna Kendrick at the Premiere of "50/50"

Anna Kendrick with hair by Sam Leonardi and styling by Neil Rodgers