Song Weilong was appointed as the brand spokesperson for Emporio Armani's Men’s Watches in 2020. His role expanded in 2022 to include Men’s Watches and Accessories, covering Greater China and the Asia-Pacific region.

Song Weilong was named as the newest brand ambassador of Gucci in May 2024, featuring in the brand’s 520 Valentine’s Day campaign.

Song Weilong was named Mikimoto's first global male ambassador in 2022, marking a historic move for the luxury Japanese jewelry brand.