it depends on the artist,and how dark the tattoo that you want to cover is
If you want to cover up a tattoo that no longer has special meaning, you can cover it up with a whole new tattoo. But if your looking for a temporary cover up, try make up. There is also a special type of make up, called tattoo cover up.
It is indeed possible to cover up a tattoo, but any tattoo that you will get will have to be significantly darker than the one that you have now to effectively cover it. Consult with your local tattoo artist, see if they are good at cover ups (not all artists are), and he or she will design something for you that will cover it and will be complimentary as well.
cover up, don't know the name of it but their is a tattoo cover up, try google----------------------------------------------The name of the product you are thinking of is Tattoo Camo. It works really well to cover up tattoos and stays on all day. Its really dense so it doesn't take like 50 applications for it to cover the tattoo completely. They offer 6 colors but I mixed two shades t get the best match.
Makeup
apparently its to cover up a tattoo that is not appropriate for telly.
Ben Nye Tattoo Cover (look online, Ben Nye is a theatrical makeup supply house) is pretty much the standard in tattoo covering makeup.
Bruno Mars covers up his tattoo because he feels that it makes him look like someone he is not.
OK do it try it if it hurts don't do it
Yes, he has a rose tattoo on his shoulder. His character, Stefan, in the Vampire Diaries also has the tattoo because they choose not to cover it up during filming.
covering with solid black is a bad idea. most of the time, you can still see the underlying tattoo. the rose is probably a good idea (organics make for GREAT coverups), but you should seek the advice of a well-experienced tattoo artist for any cover up.
apparently its to cover up a tattoo that is not appropriate for telly.