Chief Keef and is "pretty positive" she is pregnant with his baby.

Not only did this dude, Zachary, write a letter to his sister Morgan's friends and family, but he also photo shopped a picture of Morgan and Chief Keef together. I mean, how could anyone think this was fake if there is photo evidence? And if the pic wasn't enough the little details he included in the letter, like Morgan calling Chief Keef by his first name Keith, really took this prank to the next level. Check it out below.

“Happy Holiday's everyone! I hope you all had a fantastic 2016 and are looking forward to making 2017 even better. This year has treated me fantastic!

 

Since September, I've been in a very serious relationship with an amazing guy named Keith Cozart, a famous rapper who some of you might know as Chief Keef. He has many hit songs that you've probably heard, such as That's The S*** I Don't Like', 'I Hate Being Sober' and 'Those B****es Love Sosa. Keith is an amazing guy with a lot going for him and this is the happiest I've been in at least 6 months! I dropped out of college last month because I found out that I'm pregnant and I'm pretty sure Keith is the dad (not positive though). Keith and I plan on moving to Atlanta in March and we couldn't be more excited! Best wishes to you all in 2017!!

 

P.S. Bang Bang.”

Zachary's jolly little joke was discovered when their Aunt called little sis to ask her about her "new boyfriend". Morgan knew as soon as she got the call that Zach was behind it. He's known for pulling some pretty epic pranks, but this one definitely takes the cake.

“He’s creative to say the least,” Morgan tells BuzzFeed “I’m not sure where he comes up with these things in his head — he’s comically talented really.”

You can read the letter Zach wrote and even take a peek at a few of his previous pranks on the BuzzFeed website.