WATCH: Grooms amaze wedding guests with incredible group dance number

The golden age of flash mobs may have already come and gone, but two grooms recently brought the concept back in style when they surprised their wedding guests with a joyous routine.

Isaiah and Taylor Green-Jones tied the knot in Portland, Oregon over the summer, and it was a reception for the books.

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“We’d always wanted to do a dance video, but had never made a routine,” Taylor, a dance instructor, told Good Morning America.

Enlisting some help from a fellow dancer, the two choreographed the group number to Beyonce’s “Before I Let Go” and Lil Nas X’s “Old Town Road.”

Isaiah said it was especially meaningful to use a song by Lil Nas X “because it is sung by an openly gay black male artist.”

The group rehearsed for a month prior to the big day, and their preparation paid off. The unsuspecting guests were thrilled.

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“Everyone was surprised at the wedding. No one knew, so there was a lot of cheering, a lot of yelling. It was great,” Isaiah said.

Check out the dance below and just try not to smile, we dare you:

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