The HIMYM news just keeps coming.

Sources who work on How I Met Your Mother tell me Alicia Silverstone has opted out of appearing in the 14th episode of the season, which has another guest star you may have heard of...the name Britney Spears ring any bells?

I'm told Alicia is a big fan of HIMYM and wants to take part in another role at a later date—just not while Britney is there since, according to sources, it may be too "chaotic." (Hmmm...that word also ring a bell?)

Inside sources also confirm what my frenemy Michael Ausiello just reported over at TV Guide: that Scrubs' Sarah Chalke is now in line to replace Alicia in the role. Not too shabby, right? Clearly, the girl's got comedy chops and knows her way around a doctor's office...

The role that was Alicia's and now is looking like Sarah's is that of Stella, a hot doctor that Ted (Josh Radnor) has a serious crush on—and goes to ridiculous lengths to impress. As we reported yesterday, Britney is playing "Abby," the "Michael Cera-esque" receptionist for Stella. So Sarah and Britney will share some screen time (and I'm guessing Josh will be pinching himself at the surreal sandwich in which he will find himself on set!).

If you ask me, this is all a win-win-win for HIMYM. All the brouhaha over Britney should bring more attention to this fantastic show we fans are already ape-dookie over, and now we get to have Sarah Chalke (love) and still look forward to Alicia Silverstone (fingers crossed) appearing later on. Plus, you know, all the regulars and stellar writing we've already come to love.

Oh, BTW, I'm starting to develop a serious girl crush on Miss Silverstone because, clearly, the girl has impeccable taste in television. Not only is she a HIMYM fan, but Connie Britton told me Alicia once screeched to a halt and almost caused a car accident just so she could pull over to the side of the road and tell Connie how much she adores Friday Night Lights.

Honestly, that's just legen...wait for it....dary! (As the illustrious Barnito Supreme might say.)

So what do you all think of all these HIMYM developments? Dying to know, so please, post below!

source- E!

Alicia Silverstone is so funny it cracks me up if this rumor is true! I'll never forget her on The View when she dissed Elizabeth because of the Rosie/Elizabeth fued.

^i agree. I love Alicia. She is one of my fave celebs.

It's sad that she didn't make it to HIMYM, but hopefully Alicia will turn up some day.

Meanwhile, Sarah Chalke did a great job as Stella. I hope we'll get to see more of her.

And Britney Spears was okay in the first episode she appeared in, but the second wasn't that entertaining.

i thought the second episode was cute.

and i loved the major ratings bump.

himym is by far the best comedy to come along since scrubs, so i lvoed that sarah chalke was on it.

Alicia ... i hope she comes on as the mother.

No matter what others say, I would still love it if Robin somehow turned out to be the mother. The expression on the children's faces when Ted first called Robin "aunt Robin" was weird.

^I agree, and i think they did that just in case but id be pissed. because they have thrown things in that make that impossable - such as ted met her at that one party from last season. etc...