The singer attended the Acne Studios women’s show at the Carrousel du Louvre on Sunday.
The brothers, sons of actor Pierce Brosnan, wore Armani to the 77th Golden Globe Awards, which honors excellence in film and television.
The designer had joined the Space Age label in February 2018.
It’s the Swedish label’s second collaboration with the basketball player, who starred in the Acne Studios spring 2019 campaign.
The collaboration with Starter Black Label line includes a pink and white version of the classic Starter baseball jacket.