I'm making a rev light using 25 PL9823 LEDs and an Arduino. I plan on using SimHub to do all the heavy lifting but I just want to make sure I am wiring the LEDS correctly. I've seen in some posts and across the internet that it is a good a idea to add a couple resistors to the circuit but I'm not sure how much and where I should add mine. Right now I was just planning on connecting all the pins together and having the 5V and GND wire connect up with other components (button matrix, rotaries, etc.) and then wire to the pro micro I'm using. This won't overload or under power anything right? Do I need to have any current concerns either?
From my understanding this LED is compatible with the WS2812 LED.
So use the same procedures recommended for the WS2812.
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That's not how circuits work. Like that, it won't do anything and components will almost certainly be damaged.
When you design a circuit, you have to understand exactly what pin needs to be connected to what components, and what they must never be connected to, to prevent damage.
I suggest you take some basic tutorials about electricity, so you understand about circuits, voltages, current and power, Ohm's law and so on. Then practice building some basic circuits on breadboard like lighting a led, using switches etc. Then you can start building basic circuits involving an Arduino.
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Here is what I was planning on wiring. Do you think if I did this something would break? If so what do I need to fix and where am I going wrong. I am still new to circuits and have some very basic knowledge of currents, ohm's law etc. If I am not mistaken wiring the LEDs together would cause a voltage drop after each one while current is constant? I have never worked with LEDs before and I am just generally confused by them what would you recommend?
Hi, @jtfrey
Welcome to the forum.
Some research;
This might help get you started.
Get one LED working first, then think about adding the extra ones.
Can you please tell us your electronics, programming, arduino, hardware experience?
Tom.... 
Ok, that's a pro micro with some extra labels, but I don't see any other components.
If you don't connect anything to the pro micro it will be fine.
Read the forum guide in the sticky post at the top of most sections of the forum. It will tell you what you need to post so that the forum can help you.