prom, prom, prom.
The Glee cast is on the Wall of Fame at the Mall of America, which was created in honor of the mall’s 20th anniversary. They boast over 900 celebrity visitors in those 20 years (though their wall didn’t have nearly that many people on it at this time - mostly just recent visitors). There were three or four sections the size of the section shown in the second picture. The Glee cast is right on the left “arm” of the big star in the middle.