Yes, extrovert. He seems to be in interviews, and a lot of his songs are about his affect on people around him. "Do you have the time to listen to me whine..."
"I always waste my time just wondering
What the next man thinks of me..."
"Hey there lookin' at me
Tell me what do you see"
I also think he seems more of a feeler. His songs have a lot to do with emotions and acceptance.
What is normal to one, is incomprehensible to another.
ALL anger in this world stems from a lack of control.
All of reality bows to the illusion of life and death.
He's definitely an extraverted performer, and his words are more to affect the world, not affect himself. He wants the world to be with him.
He's N as well, his lyrics are heavy with metaphors and N language. American Idiot is one giant story that flows perfectly. Great Big Picture writing.
I think he's a T because even though he's writing love songs, they aren't sappy. There's a sense of T-logic going on. Also, with the older he's gotten, his songs have become more political in a Ti sense, I think. I dunno, it's hard to explain, but I def get a T-vibe. Plus, he's sarcastic as hell.
and P because of his sense of style and usually 'punk' type kids tend to be P, I think.
Ehhh, in a way, a good way to get more in depth with typology is to look at the function order (I didnt really go into order in describing Billie Joe, I just did a general Letter assessment)
But what makes you different from Billie Joe would be your function order, you rely heavily on Ti and then follow up with Ne, as Billie Joe relies heavily on Ne and follows up with Ti.
So in a sense, yes, since he is more extraverted than you, he is going to lead with his Extraverted function, which would be Extraverted Intuition. And since you're more introverted, you're going to lead with your introverted function that is Introverted Thinking.
A good way to learn the differences between xNTPs would be googling the differences between intp and entp and learning how they view the world.