Sullivan & Cromwell beat back a celebrity business manager’s claims that Goldman Sachs breached an alleged fiduciary duty by helping an affiliate lock down a $7 billion private equity sale, while advising the management firm on a proposed, rival transaction.

In dismissing the fraud case against Goldman Sachs, Manhattan Supreme Court Justice Margaret Chan said the KSFB Management LLC, whose principals have reportedly provided business management services for Beyoncé and Drake, hadn’t plausibly shown it was owed a fiduciary relationship by Goldman Sachs. KSFB was represented by Quinn Emanuel Urquhart & Sullivan.