Celebrating his role in the Taylor Swift Pop-chart-topper "Look What You Made Me Do" (Big Machine/BMLG), Sony/ATV writer and producer Jack Antonoff joins his pubco pals for a #1 party, which involved mylar balloons and Rick Krim's cannabis-infused cupcakes. The latter are believed to have fueled a stunning concept album about a mystical humidor that's also a portal to another dimension. Seen keeping it together despite that scary bright light are (l-r) VP Creative Tyler Childs, Antonoff, SVP/Co-Head of West Coast A&R Jennifer Knoepfle and Co-Prexy U.S. Krim.