Lightening hair with sun and lemon juice?

Lightening hair with sun and lemon juice?

I've been thinking about trying to lighten my hair the cheap way--with lots of lemon juice and sun. Does this work well? My hair is naturally blonde, but I colored it light brown. Will the lemon juice turn my hair a funky color because of the hair dye? I don't really want to bleach my hair, but if you guys have any cheap suggestions on how to lighten my haircolor the chemical way or any tips on the lemon juice method, let me know! Either way, I'd really like to avoid spending $$$ on two boxes of hairdye. Thanks guys! =D EDIT!!! Thanks for all the great advice, guys. I'm glad you were able to enlighten me about my hair situation before I went and messed it up ridiculously. I'm just gonna wait until my hair grows out and trim the colored hair off as my roots get longer. Thanks again!
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