Instagram/Usher & Justin Bieber Celebrity Justin Bieber & Usher's tense verbal clash at Beyoncé's Oscars after-party. Get the details on the star-studded confrontation. March 21, 2026 AceShowbiz - Justin Bieber and Usher were reportedly involved in a tense verbal exchange at a star-studded Oscars after-party hosted by Beyoncé and Jay-Z, sparking widespread speculation about the reasons behind the confrontation. The incident took place at an exclusive event filled with numerous A-list celebrities, including Taylor Swift, Travis Kelce, Michael B.