ABC has released the first official teaser for Castle Season 6.

And while the promo doesn't reveal any new footage from the September 23 premiere, it does feature a number of excited fans reacting to the moment we've been waiting years to see: Rick proposing to Kate. EEK!

Beckett's answer will be revealed on next month's opener, producers have promised, so click Play now to share in the excitement and then respond to our poll question below.

What should Beckett say to Castle's proposal?

Matt Richenthal is the Editor in Chief of TV Fanatic. Follow him on Twitter and on Google+.