I hit Glutes and Shoulders yesterday.
GO HEAVY on the squats. Put ALL the weight in your heels and drive through the heels when you stand. I was doing close to the whole weight stack on the cable machine.
SUPERSET these 2 exercises back to back. Only take enough time switch up the weight. I have to go lighter on the curtsy squats than I do the regular squats. The burn is legit. 3 sets. 12-15 reps.