"Being sexy is just being 100 percent comfortable with yourself," Bieber said in a behind-the-scenes clip from his shirtless photo shoot. "I am fearless by taking things one step at a time, and not focusing on the hardships but focusing on the success."
This is Bieber's second time around with the label after his first outing with them last January. This marks round two for Jenner as well, who revealed that she wears the designer's clothes whether the camera is on her or not.
"The underwear is sick and amazing, and honestly I wear it every night to sleep," she said.
The new campaign had celebs fill in the blank for this sentence, "I _________ in #mycalvins."
Bieber wrote "flaunt," while Kendall wrote "be with you."
Lamar filled in his blank with the word "reflect" and he reminisced about his hometown roots behind the scenes, saying, "Compton means strength. You got to be a strong person to grow up in the inner city."