QUIZ: How well can you remember the very first episode of Gossip Girl?

XOXO, Gossip Girl.

It's been a little more than a decade since we dove into the fictional world of New York's Upper East Side.

And once Gossip Girl premiered, we tuned into the show for just about everything: from the drama, the fashion and even the addiction relationships.

From the very first moments of the series, we followed the ins and outs of things between frenemies Serena van der Woodsen and her frenemy Blair Waldorf, as well as their inner circle.

And even after all these years, those Upper East Siders have a firm spot in our hearts.

We're still holding out hope there may be a reunion on the cards, but in the meantime we'll happily settle for a cosy night in/catch up by re-watching the series.

Although, even now, it can be tricky to remember where it all began - so we've put together the ultimate Gossip Girl test.

Whether it's been awhile since you've caught up with Manhattan's Upper Elite or you're as all-knowing as Gossip Girl herself, take our quiz to find out how well you remember the very first episode.