"A new fighter is in town" or "There's a new fighter in town"?

Howdy!

I'm writing a little copy for a new product sneak peak. It's for a headline accompanied with a picture of the product and no body text. Which is better:

"A new fighter is in town" or "There's a new fighter in town".

Or would you phrase it another way?
Are both ways proper english or would they strike you as odd or weirdly phrased?

Thanks in advance!
Reimund