That was the case with this black t-shirt. It's important to note that this was my absolute favorite black t-shirt, so for this reason it was starting to get kind of grey and icky looking. I contemplated giving it a black dye bath to liven it up, but then I came across this technique using bleach and fabric paint on pinterest from Wise Rabbit Says.
I pretty much followed the tutorial step by step. One thing I did differently was go in with some white and blue craft paint which I splattered on with a brush to add some more "starry" effects. I'm pretty happy with the way it turned out. I especially like that since I put plastic inside the shirt none of what I did came out on the back - making it look more print-y and "professional". As professional as splatters of bleach can be I guess!
Hope you like it - Happy DIY-ing!