Words: 76
Average Length: 4.87
Difficulty: Easier than finding four less similar acts to perform in the same concert

Persuading smushed-together song titles to divide symmetrically is a non-trivial undertaking. My other Set List puzzles had symmetrical theme answers spanning three long entries. For this puzzle, try as I might, I could only create a set list spanning two long, symmetrical entries. I’d been thinking of using the made-up rumored collaboration at 38 Across in a different puzzle, but I decided a shorter set list would be fine provided that the collaboration had a central spot in this grid.