It also sounds like “said” to me. However, these lyrics are really weird to me, in general. The song is cute and fun, but this is not natural feeling grammar. I’m a native english speaker, and i had a lot of trouble understanding what the song is talking about. My advice would be to not study for learning off of this song. Here’s what I think is happening though: I think the speaker is trying to sound “country.” And using “said” in this way is very regional, very colloquial, and most likely from a rural area- perhaps Nebraska, Oklahoma, Tennessee area. Almost southern, but not quite. The colloquial implication is “(I) said (that) I’m Luke (and) I’m 5.” Hope this helps :-)

I have no idea. I agree that the word sounds like "said." But, seriously, you have to take a relaxed attitude toward song lyrics. Song lyrics are not good examples of standard English. The lyrics and tune combine to form an impression. Song lyrics may leave out words, distort words, include nonsense words, "bad" grammar, made-up words, personal use of language. They may commit all kinds of language crimes to fit the words to the music. They may choose words just for the sound of the words, whether they are the "right" words or not. They are about emotion, not logic. And it's often hard to be sure exactly what the words are! On the Internet, "song lyrics" are often somebody writing down what they think they heard, and different sources will have different words. My personal favorite songwriters are manage to get the sound and the rhythm and the emotion, perfect rhyme and meter, and clear, natural, correct English all at the same time. I'm thinking of Broadway songwriters of the 1920s-1960s: Irving Berlin, Cole Porter, Rodgers & Hammerstein, Stephen Sondheim. But they are the exception, not the rule.

He means "I said". To whom? To you.

I've watched it 5 times...i have no idea! sorry.

I think the boy and his dad were in a car on the bypass and they broke down (holding up the bypass). The dad took/ got out the toolbox. The son was sitting on the toolbox. And the son said he himself was Bruce Lee. Said, ı am Bruce Lee. In plain English writting it would be "I said I am 'Bruce Lee'".