Creating text to a fit a certain width/height

I want to write the words HAPPY and BIRTHDAY underneath each other so that the word HAPPY takes up the the same width as the word BIRTHDAY. I also want to make the HAPPY twice as tall as the word BIRTHDAY.

Do I need to adjust the spacing and/or width for each individual letter? I'm guessing I can make the HAPPY taller by some kind of stretching tool?

Cheers in advance.

the easiest way might be to make a text layer for each word, and then free transform (Ctrl-T) each layer.

or else you can highlight each word, and adjust the width and height numerically in the Character Palette. Goto window, show character... that is it, i believe?