I don't know if the lyrics are correct, since the woman Who sings it has a bit of accent, so I did my best at Trying to understand what the hell she was actually singing. If you have the lyrics somewhere, please send them to me. :)
INTRO:
Dm | F C | Dm
VERSE: Dm Alegria... F C I see a sparkle of life shining Dm Alegria... F C I hear a young mythical saying Dm Alegria F C Dm Bb Your new, always rich of joy and sorrow Gm So extreme F C There's a love in your raging Dm Alegria F C Dm A joy of magical feeling
-------------------------------- The rest of the verses are (I think) the same but in a Different language. You can also do a little bit of solo'ing In 'Dm'-scale.