Leyla... "you said it" is an expression that means "I agree with what you said".

It is used to express the feeling that someone's words are true or appropriate.

It is an informal expression usually spoken (not written), e.g., 

The boss is making us work too much. (I agree with what you said, so I say "you said it" = you said what I was thinking, so I agree with you.)

So, Spangola agrees with what you wrote... he agrees with your comment.

It doesn't So what am I?! O_o

Ha ha ha Thank YOU , Richard :)

Spangola , consider, my English is very " good".

Great performance and brilliant idea... How could the Foo Fighters resist such an incredible invitation... and that's coming from someone who was there when Woodstock was rockin' our world... Good posting Spangola...

Very cool video.