09/28/2011 07:49 am ET Updated Dec 06, 2017

Jason Alexander Steps Out With Hair (PHOTOS)

It has come to our attention that George Costanza has hair.

While we don't normally keep such close tabs on George -- er, Jason Alexander, the New York Daily News pointed out that recently, the famously bald "Seinfeld" star has been sporting an actual head of hair -- when only three months ago the actor was as bald as ever.

What gives?

"I am experimenting with some interesting hair systems. Don't be shocked if you suddenly see pics of me with more hair than usual," Alexander tweeted on July 21.

Yesterday the surprised reactions from fans and media spurred Alexander to post a longer explanation via Twitter, in which he said:

What you see on my head is a really good, semi-permanent hairpiece. By semi-permanent I mean that I can wear it constantly for weeks at a time, if I so choose. I can swim, shower, work out -- whatever. It stays on. Or I can take it off any time of any day I choose. The reason it looks thin is that I challenged my designer to make me a piece that would look very similar to the way I did 10 years ago. So, it looks like a guy who is losing his hair and isn't an artificial mop of hair that I never had.

Alexander's not ready to start saying who made it or get into any sort of endorsements, he writes, but that "it's honestly no big deal for me and hope it's not for you either."

Fine by us -- that's one damn good hairpiece. Below, see Alexander on June 4 (left) and September 22.

Read more on Alexander's Twitter.