It might work, but you've indicated you are really like Ben Lee. Why would you say you could not wait?
You would use "not" rather than "never" because we're speaking of a one-time thing; never implies forever. Compare:
I broke my leg and I cannot walk.
I am a parapalegic. I can never walk again.
If you mean you "just can't wait" that's different. That's an idiom to express how eager you are for the concert. "I just can't wait" is one of those phrases that cannot be literally translated as it means almost the oposite of what it looks like. It means you are having difficulty being patient, waiting. It can also mean exactly what it says, as in: "My bus is coming and he's still not here to say good bye. I must go; I just can't wait any longer."
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