Flat Earthers

Rapper B.o.B. (Bobby Ray Simmons jr.) is in the news at the moment for claiming that the Earth is in fact flat; he tweeted recently "I didn't wanna believe it either" and gave a whole bunch of "evidence" (I use this word in it's loosest sense, i.e. "regurgitated crap") for his views. It's hard to tell if this performer is just seeking attention or if he really believes this nonsense but whichever it is he has certainly attracted a chunk of ridicule from educated people around the world (rightly so). Cosmologist Neil deGrasse Tyson said “Being five centuries regressed in your reasoning doesn't mean we all can’t still like your music.” which is amusing but I'm pretty sure educated people knew the Earth wasn't flat long before that, particularly sailors, there's a reason they put lookout's at the top of masts and it wasn't to get more fresh air!

I wonder if flat Earthers believe that all the other planets are flat too?