YSL is Birdman’s Young Money replacement. Birdman and Young Thug are officially in business together. Although Thugger and Birdman have worked closely throughout the last several years, Thugger’s YSL label was partnered with Lyor Cohen’s 300 label. On Friday (March 15), Birdman and Young Thug took to social media to announce a new business deal that will partner YSL with Cash Money. “S/O to …