How do you split a signal from your computer?

[Joaquin]

I want to be able to hear tracks coming from my computer speakers and also use my headphones at the same time.......Is there a way to hear the speakers and use headphones at the same time?..When I use my headphones I usually lose my computer speaker sound.............school me on a simple way to do this. Is there some kind of splitter I can get?

[poorbassist15]

male 1/8" to two female 1/8" adapter, I guess.

[zachoff]

I use my UX1 as my sound card. I have headphones plugged into it as well as monitors. Works for me.