The email is addressed to "bae intern," because "bae" is something this recruiter must have heard their niece use once, and parroting youth-speak is life. It's an invite to a party which they insist will be exclusive, despite the fact that they invited every intern working in tech whose email they could find. Undoubtedly, Microsoft set some kind of minimum baeness quotient (MBQ) required for entry. Because that's how you verifiably partayyy!
To make sure they were speaking the young 'uns language, they hit all the hip keywords that you'd get from a Bing search of "What is cool?"
Sunglasses are the one cool thing that hasn't excluded itself from Bing.
For those of you who aren't "woke," allow me to translate. (I am half woke on my mother's side.) Microsoft's "crew" of communications BAs with five-plus years of recruitment experience is throwing this party after Internapalooza, which I can only guess from the name is a travelling intern festival that was very popular in the early '90s. They promise "hella noms, lots of dranks," and "the best beats." That is to say, these Microsoft employees will have food, drinks, and music. They are describing the minimum requirements for a party.