So my favorite choreography or dance they do is different styles.

one of the hardest they do is ON:

https://youtu.be/VkuEzN8IS_o

Dance break: dynamite into butter is smooth

https://youtu.be/-mRLd5b_WM4

Beautiful choreography:

https://youtu.be/v8z1TtlY1no

or

https://youtu.be/_AlODdAInRY

Fun:

https://youtu.be/V6gzgV1fBxg