It's part of the show's 30th anniversary week, so two good reasons for a party.
Here are some tips on how to throw the perfect bash...
It may be a poor substitute for Albert Square, but choose a character to dress up as and pop down the local market to pick your outfit.
Will it be Whitney, will it be Max, will it be Ian?
Whoever you pick, gold hoop earnings, plastic leather jackets, fake fur and tracksuits could be on the shopping list.
You won't go far wrong with a chef's apron either.
Fill your basket with cheap crisps, sweets and drinks.
You may not be on first name terms with the cashier, or get into a row while you're in there, but if you try really hard you may just believe you're in the Minute Mart.
For the main course, it's just got to be fish and chips.
In honour of the Beale family, make it plaice.
Make your guests really feel like they're stepping into Albert Square.
A street sign on the front door, framed pictures of the cast around the room and the EastEnders theme tune on a loop would certainly help set the mood.
If you really want to push the boat out, why not create your own Queen Vic, complete with a bar, a royal sculpture and a licence above the door?
No Who Killed Lucy Beale party would be complete without some sort of competition to guess who the culprit actually is.
Whoever gets the killer right, gets the prize. Yay!
Sure, this may just be a bit of fun but at the heart of all this is the loss of a young woman's life (sort of).
Yes, she had a history of causing trouble and getting up people's noses, but do take a minute to remember Lucy Beale.
RIP Lucy, never forgotten.
We are in no way condoning physical violence, but come on, no EastEnders event would be complete without a bit of a verbal bust up.
After the big reveal, just let all that vent up frustration out of your system.
Frowning all night and generally being a bit glum could also help you get in the mood.
Have fun!
In true EastEnders style, after the party, head to a trendy club around the corner.
Ideally, you'll know practically everyone in there and the music will be so quiet you'll hear what the bloke at the end of the bar is saying.
You'll probably get into a row with whoever's serving the drinks as well.
Now you're really getting into the spirit of it.
If you're nursing a sore head the next morning after all that "loud music", get down to your local greasy spoon for a fry up.
And hopefully it will stop you feeling like this...
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Operators such as Uber and GrabTaxi will now have to register with the country's Land Transport Authority.
Under the regulations, fees charged by the booking apps cannot exceed those of regular taxi companies.
The new measures will be enforced from the second quarter of next year, the government office said on Friday.
"To ensure that taxi services remain equally accessible to all members of the public, bidding and pre-trip tipping for taxi services will not be allowed," the LTA added in a statement.
Wealthy city-state Singapore is among the most expensive places in the world to own a car, with many commuters relying on taxis to get around.
The popularity of taxi booking services has surged in the city of nearly 5.4 million people, especially during peak business hours.
Uber has expanded rapidly in Singapore offering services such as high-end UberExec and cheaper UberX cars, along with a service to book regular taxis.
The company said the new rules would not affect its extra services, because it already has partnerships with licensed limousine and rental car companies.
"We appreciate that the LTA has acknowledged the benefits our technology brings, and like Uber, is putting the interest and safety of consumers and drivers first," said Uber's regional general manager of Southeast Asia, Mike Brown, in a statement to Reuters.
The San Francisco-based company has faced protests around the world by taxi drivers who are against its services, which allow people to become unlicensed taxi drivers by using their own cars.
Viewers have been guessing who did it for the last year, but on Thursday EastEnders will FINALLY reveal who killed Lucy Beale.
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Singapore plans to regulate third-party taxi booking apps such as Uber by capping fees and limiting them to use only licensed vehicles and drivers.