According to the BBC, rapper B.o.B. used Twitter to jump on the "flat Earth" bandwagon, and it looks like he’s been riding it ever since.
B.o.B., whose real name is Bobby Ray Simmons Jr, has started a GoFundMe campaign to find Earth’s curve and see if our planet is actually round (and not a flat disc hanging in space as flat Earthers typically believe). His big contention is that if the earth was round, the "curve" would be more visible to the earthbound human eye.
His fundraising campaign says the plan is to "launch multiple satellites into space" in order to observe, and try to disprove, what centuries of science and technology have already confirmed. All he needs is a small investment of $200,000 dollars (and launch approval, of course).