text formatting inside \addlyrics

[Gerard McConnell]

Hello,
How do I italicize a section of text inside \addlyrics?
Something like this, I figured, though this is wrong -

{ c4 c8 c c4 c }
\addlyrics { one \italic two and \normal-text three four }

which surprised me because the following does work -
\addlyrics { one \huge two and \normalsize three four }

I hope that gives the idea of what I'm trying to do.
Thanks for any help,
Gerard