Yes! 'Dancing with the Stars' is a copy of 'Strictly Come Dancing' which has been running in the UK for 7 seasons, and which is in itself a re-vamp of 'Come Dancing', a show from 40 years ago that showcased real amateur and professional dancers rather than celebrities.
Well, if you go on a Disney cruise for more than 6,000 dollars you can go to a party with the -not the very famous- Disney stars once, and say you were on a cruise with them, but I'm sure you don't actually "Hang out" with them.... I wouldn't suggest it
Red Dwarf stars are the commonest in the Galaxy. Red Dwarf stars last much longer than blue stars for example. So you would expect to find more of these red stars. You need a telescope to see them, but they are very common.