It's not necessarily a chair, but it's a bench, which is a form of a chair and who cares when Sistar19 is this sexy?

2PM's "ADTOY" famous chair dance was one of the hottest things we've ever seen a boy group do. You didn't think a boy group would make this list did you? Well, you were wrong!

Afterschool didn't use chairs but they used poles which is essentiallyt he same thing an the seiness was unbearable.

Son Dambi's infamous "Crazy" chair dance:

I will never think this is an appropriate video for viewers under a certain age but it has a sexy chair dance, though I use the word "sexy" cautiously.

The Shinhwa throwback chair dance!

And SHINee's imitation of Sistar19's chair dance is sexier than all of these videos put together: