Shortly after their arrival, Smith and his sisters were photographed by Hedi Slimane for Vogue Homme Japan, which generated immediate attention.

[2] Smith has walked the runways for Fendi, Chanel, Roberto Cavalli, Moschino, Emporio Armani, DSquared2, Salvatore Ferragamo, Philipp Plein, Ralph Lauren, Balmain, Tom Ford, Marc Jacobs, Ermanno Scervino, Versace, Jeremy Scott, Michael Kors, John Varvatos, Etro and Bottega Veneta.

[2] He has appeared in advertising campaigns for Tom Ford, Calvin Klein, Moncler, Tommy Hilfiger, Philipp Plein, Mavi, Penshoppe, H&M, Gap, Big C and L'Oreal.

The parents gave their children relatively uncommon or unique names to offset having the most common surname in the United States.

[23] Many in the fashion industry acknowledge that Smith's popularity (especially among teenage girls and boys) on social media is a deciding factor for brands and editors who have hired him, as it is an increasingly important network for promotion of trends.