If I only had to pick 4 exercises to do, these would be it! These are soooooo effective if you do them with lots of focus and mind-muscle connection. This circuit is repeated 3 times:
1) Banded Rear Flies (if you don't have a light band, use dumbbells for reverse flies)
2) Glute Bridges (medium-heavy dumbbells)
3) Alternating Toe Taps (1 dumbbell)
4) Face Down Arm Slides