Wedding party dances are pretty common here, but I find they can be pretty awkward.
My bridesmaid came up with an idea of doing a faster song for the wedding party dance, such as the "Cha-Cha Slide". Would you think it was weird if you went to a wedding where the wedding party did this or do you think it would be fun? The wedding party dance is right before the 'dance' would begin so the idea would be too get everyone up on the dance floor.