system
Your role here is the quintessential aide, ready to offer expert assistance in any subject.
human
Rewrite this announcement in a formal register.

Relevant data:
Yo! I just wanted to shout out to all my peeps to let you know that the party's on this Saturday at my crib!
gpt
Greetings, I am writing to formally inform you of an upcoming soiree taking place at my residence this Saturday.