Amber Riley's 'Glee'-Ful Birthday And The Grammy's Best/Worst Dressed In Today's Tweet Dreams

There's bound to be a little extra singing on the set of "Glee" as the cast warms their pipes to sing "Happy Birthday" to co-star Amber Riley, who turns 24 today! In fact, many of her co-stars sent Amber (pictured) some additional b-day wishes on Twitter today, including Naya Rivera who posted, "Happy happy birthday!!! @msamberpriley love you!" Jenna Ushkowitz wrote, "happy birthday to my sis, @msamberpriley :)" while Dianna Agron suggested, "Happy Birthday @msamberpriley! I think we need more dancing...." The jubilant birthday girl took to her page to tell friends and followers alike, "Thank you to everyone that has wished my a Happy Birthday, I'm reading each one and I feel the love with each tweet!"

Unfortunately, Amber wasn't feeling the love yesterday during Joan Rivers' post-Grammy Awards fashion wrap-up. It seems as though the brash comedienne and her tough-to-please Fashion Police didn't love the "Glee" star's threads this time around, to which Amber could only laugh off, "LOL omg Joan Rivers is insane, from best to worst! Thanx Fashion Police! At least I was in good company, I though Kim and Katy looked gorge!" While Amber found herself on the dreaded "worst dressed" list, it seems Joan finally had a change of heart for Snooki, thanks to her Grammy dress. The pint-sized "Jersey Shore" star wrote from her page today, "Wohoooo I got Joan Rivers approval finally ! Lol ;) Thanks hot stuff."

Check out the rest of Tuesday's best celebrity tweets, including Daniel Cudmore's final day on the "Breaking Dawn" set and the latest stars to catch Bieber Fever: Lauren Conrad and Andy Richter! Follow us @hollywoodcrush to get even more celebrity and pop culture news around the clock!

@laurenconrad Just saw Never Say Never and now I don't feel so well... Think it's cause I caught Beiber Fever!!!

-Lauren Conrad, Author, Reality Star ("The Hills")

@richter_andy As much as I am loathe to admit it, today I, too, am like baby, baby, baby, ooh.

-Andy Richter, Actor, TV Personality ("Conan")

@justinbieber Had to say it. @rihanna is just sexy!

-Justin Bieber, Singer

@spencerpratt Billy Ray Cyrus tells GQ that Satan is responsible for Hannah Montana. Nice try Billy, but I've never worked at Disney!

-Spencer Pratt, Reality Star ("The Hills")

@candacecbure Why is it that my iPod on shuffle only wants to play the soundtrack to Aladdin?

-Candace Cameron Bure, Actress ("Make It or Break It," "Full House")

@chloegmoretz Ahh caught up on my #GossipGirl last night at #PrettyLittleLiars andd #VampireDiaries (I was behind) sooooooo amazing ahhh!!

-Chloe Moretz, Actress ("Let Me In," "Kick-Ass")

@mtvsammi soo one month til my birthday march 14th.. i have to start planning this out..

-Sammi "Sweetheart" Giancola, Reality Star ("Jersey Shore")

@therealzooeyd One month from yesterday, march 14th, is marshmallow day. So get ready everyone, you need to start stockpiling NOW.

-Zooey Deschanel, Singer, Actress ("(500) Days of Summer," "Elf")

@lancebass I get my wisdom teeth out tomorrow!!! I can't wait to look like a chipmunk!!!

-Lance Bass, Singer ('NSYNC)

@danielcudmore And thats a wrap on Twilight for me...what a blast these films have been for me, I can't wait for everyone to see the last two! What's next?

-Daniel Cudmore, Actor ("Breaking Dawn," "Eclipse")