crowd singing happy 18th birthday to demi lovato 8/17/10 in New Jersey 

i been a fan of demi since she was 16 and now her birthday is coming up i bet she is going to have an awsome 19th birthday I LOVE YOU DEMI STAY STRONG

she is so humble she is a good girl and she is so talented!!!!

She's 26 now😭💗

awh, it's sad that she said she had everything she wanted, but she was suffering with her eating disorder and stuff then. She's so appreciative of the little things, love her

I luv Demi sooooooo much and I really hope she gets better really soon

Aww so glad shes all better today but its tragic to hear about the passing of her father

Aw she's such a sweetie!! Hope she had a wonderful birthday!

This is great stars people from the movie of Camp Rock.. From this., Demi celebrate her daughter birthday and this is amazing. How Demi continue to dance the same way she did from the movie of Camp Rock, That is a great movie of all mankind with the songs.. To me., I love this very much.. 😃❤

Awww she cried. :') She made me cry too. Well, not technically, but my heart cried cause Demi was so sweet. :'''''')))) Love ya Demi!!!

Awee this viideo made me sad and happy and the same time, i really like demi i just wanna give her a big hug and say its all gonna be okay but thats what her mama's for. Awe i bet she is gonna have an AMAZING album when she gets out of rehab. (:

I LOVE HER SO MUCH!!

I cried a little in the wishing part !! your the best DEMI !! happy birthday !!

She just turned 22 today 😭

Awww. How cute!

aww i teared up a little, shes so sweet!

i'm crying ccuz i love her. she 's an awesome person

aww... I love her happy bday demi!!!

Love her so kind hearted(:

she made me cry :(

the best thing in the whole world. her smile :3

Awesome!

HAppy birthday demi...............!!

Happy Birthday Demi

i luv her

isn't it adorable how demi gets all high pitched when she's crying??

aww :) I got chills and I started crying ;)

Omg that was exactly 2 years ago :') HAPPY 20 BIRTHDAY DEMI!!! she grows up so fast :') I LOVE HER

omg i was there! and crying my eyes out the whole time

i love you :) im your fan number 1

Awwwww !! she made me cry a little :[ SHE'S SO SWEET !

Awwwwwwww so sweet I was like almost crying 'cause it was so cute

awwww her lil sis is so cute and chubby (:

I was there!! it was cute!

WE LOVE YOU!

i was there

aww too epic!!!!

Awww I cried I wish she was still little🙏❤️

AW!!

awwwww she made me cry :'( so sweet

I luv demi

i was there!!!!! im from argentina and that day i arrived to NY only to go to that tour with the JB!!!! 1 show in NJ and 2 in NY :D

DEMI YOUR SO SO SO CUTE ;O

Awwwwwwwww Shes cryingg

Get well Demi!

HAPPY BIRTHDAY DEMI

AW!! :)

YOU ARE SO CUTE!1!!!!!!! I LOVE YOU!

she's so cute

Awwwwwwwwww TeAdmiro tanto dem Feliz cumpleaños My idol!

awww I hope she had a wonderful birthday !! :) btw what kind of camera do u have

@kstewluver96 It was a video montage of Demi singing and her interviews and stuff and then at the end it said Happy 18th birthday Demi so it was like a mini tribute to her

awww shes sooo cuteeee my friend was in that vid for her =) (michelle from NY)

They didn't have a concert on her actual birthday and this was the nearest date before it.

@bzanneella yes demi's little sister was in this video

It's funny: I've looked for videos of Demi singing Happy Birthday because it's my friend's birthday today and I know he likes her so much. The thing is I came across this video and some another video from the previous year, and her little younger sister had ALSO brought the cake onto stage. Lovely..., and repetitive haha

SHE ALWAYS MAKES ME CRY, I WANT TO MEET HER SO BAD, I HER CONCERT IN BETHAL NY 2008

i love u demi xD

Aww

@bzanneella the girl in the striped shirt and curly hair is alyson stoner

Hai Juanita!!

I was there!!! i was in the 3rd row

i was there!

Someone needs to come back to this video on her birthday and comment how old she is now!!! She is 28 its been a decade 😭😭😭

good video better than other people taking videos of stars they always shake the camera too much

aww thats so cute!! I love it! Where were Nick and Joe?

OMGGGGGGGGGG, My little girl has 18, so faaaaaaaaaaaaast, is growing, HAAAAAAAAAAAAAAAAAAAAAPPY BIRTHDAY DEMIIII

AWWWWWw

for her 19 birthday i wanna make a message for her

Cute

i love how everyone sits to watch the video.. hahaha

I just do happend to be there that day(:

Awwwwwwwwww, she looks pretty when her hair is brown instead of black.

demi's step sisters name is madison

24 now

aawww :')

can someone please tell me the what the video was playing in the back??

i was there somewhere in that croud (yes at the back but don't wreck my moment)

After two day she will turn 25

Awww Demi its ok we all love u! :) Was joe there cause if he was that was supportive of her Ex to come? :)

Why i can't meet her i want to cry :(

sofucha19, wow your a true LOVATIC!

Omg thats So Sweet..... I Dont Know what'' To wish For, I HAVE ALL tHAT i wANT.... aHHHHHHHHHH!:} lOVE yOU gIRL:}

awww i wish joe and nick were there :((

what's playing in the video behind them?

Anyone say happy bithday to nick?? >>>>>LOL DEMI WE LOVE YOU X

Yeah Michelle's video in the background

That 1 Person who disliked this is probably Birthday Free! xD

today it's Demi 20 birthday

meaghan was at ur show??

what was playing in the BG :o??

@misssunshine1125 JB had just finished their meet and greet.

What was on the screen behind them?

What was on the video?

Who was in the video?

What did the video say ?

why do people all think she went to rehab she went to a treament center

was that little girl demis sister?

I'm mad because my parents made me late and i never saw this

i don't get it .. demi's birth day is at Aug 20th this video was update on Aug 17th

who is that little girl she is hugging