"The Last Days of Disco Stick," if you haven't heard or pieced it together, is the all-new episode of Gossip Girl airing Monday and featuring a performance by Lady Gaga.

More on that later. In the first preview from the episode below, Nate laments his lack of girlfriends. Or girl friends. He also gives Dan a lesson in threesome etiquette:

[video url="http://www.gossipgirlinsider.com/videos/the-last-days-of-disco-stick-preview-1/" title="The Last Days of Disco Stick Preview #1"] [/video]

Follow the jump for two more Gossip Girl clips. In the second, Chuck and Blair walk and discuss his latest business venture and her latest plan to win over NYU. That plan involves scoring a private concert from Lady Gaga, a preview of which we see in the third sneak peek ...

[video url="http://www.gossipgirlinsider.com/videos/the-last-days-of-disco-stick-preview-2/" title="The Last Days of Disco Stick Preview #2"] [/video]

[video url="http://www.gossipgirlinsider.com/videos/the-last-days-of-disco-stick-preview-3/" title="The Last Days of Disco Stick Preview #3"] [/video]

Steve Marsi is the Managing Editor of TV Fanatic. Follow him on Google+ or email him here.