Law Roach’s longtime clients Celine Dion and Zendaya will always hold a special place in his heart.

The celebrity stylist recently opened up on SiriusXM’s Bevelations With Bevy Smith about how the “My Heart Will Go On” singer changed his life after her Titanic sweatshirt viral moment in 2016.

Host Bevy Smith brought up Roach’s book, How to Build a Fashion Icon: Notes on Confidence From the World’s Only Image Architect, which was released last month, and how he details helping Dion find moments of freedom and fun again following the death of her husband and brother. And it all started with the Vetements “sweatshirt that was heard around the world,” as Smith described it.

“She gravitated to it,” Roach recalled. “It definitely changed people’s perception of her and it changed the trajectory of my career. Celine changed my life. Giving me that opportunity to change my life.