Michael Costello (born January 20, 1983) is an American fashion designer and reality television personality.

[1] It was at his first store in Palm Springs where Costello started making custom pieces for celebrities including Céline Dion, Jennifer Lopez, Toni Braxton, Barry Manilow, Suzanne Somers, Faye Dunaway, Florence Henderson, and more.

Costello made headlines for designing a matching hat and dress for rapper Cardi B for Paris Fashion Week.

[2] Kylie Jenner wore one of his dresses for her birthday magazine cover and Costello has partied with Lady Gaga.

[9] On July 12, 2016, Costello appeared on Good Morning America and won a nationwide fashion challenge.

The following day, he worked with Kim Kardashian in creating a red carpet dress for the ESPY Awards.