Weird Al Yankovic -- Bacon Bad ... It's My Birthday, Walter White Style

Weird Al Yankovic is the danger ... HE IS THE ONE WHO KNOCKS ... at least on his birthday.

The singer and self-professed "Breaking Bad" fan turned 54 today, and marked the occasion just like Walter White does on the show -- arranging his bacon in the shape of his age -- but Al tells us, there's something special about his bacon ... it's veggie.

Which leads us to our FUN FACT OF THE DAY: Weird Al is a vegetarian.

And this is cute, he says his wife prepared the breakfast surprise for him because she knows he's a big fan. Happy birthday!!!

As for his new album -- which Al first told us about last month -- he says he's still working hard on it, and it WILL be released ... he's just not sure when.