Mystery Drink Challenge! (MattyBRaps vs Sierra Haschak)

MattyBRapsMattyBVlogsMystery Drink ChallengeDrinkSierrahaschakHaschak SistersgirlfriendboyfrienddatedatinghilariouscutefavoritemomentMatty BRelationshipfunnycomedyhumorentertainmentfunniestcomedianhumourlollaughsmilecutenessflirtboygirlboysgirlskidskidteenteensteenagerchallengechallengestopbestgreatestlaughingsingingrappingrappersinggfbfcrushmomentsfamilyfriendsbest friendkiss challenge

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MattyB sits down with Sierra Haschak to go head-to-head in this week's Mystery Drink Challenge!  While MattyB feels confident he's got this one won, Sierra has plans of her own.  

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Sophia Cabico
sierra is a smart little girl but matt is older
matt din t you study you know what sierra
matt coppy you congratulatins sierra πŸ˜€πŸ˜—πŸ˜™πŸ˜šπŸ˜˜πŸ‘πŸ‘«
Morgan Hayden
Sierra is very bright for her age
Niki Vlogs
Do you think matt loves gracie or Sierra ?? Comment and like πŸ‘πŸ»πŸ‘ŒπŸ»
Nomonde Dyantyi
She so cute with mattyb
sup6421
Jupiter is therapist planet
Kadence Showman
Sirra won
Gloria Zubia
Sierra did you start
Hayden Alvarado
MatyB was chider
Sammi Babinski
Sierra is annoying
Anabela Markelic
Sierra is his girlfriend or..?
Ina Ina
I ship them .... they are cute together 😘😘😘Sierra is my favorite from her sisters ... like if you agree
Philip Kennedy
are you like ukrainian
GΓ  Con Bo
MattyBRaps,How old are you ?
Keirah Vell
THE SUN IS A STAR MATT HAS ANYONE TAUGHT THAT TO YOUπŸ’©
Madison Diaz
Gil Sarah yor cute
Haley F
Sierra is so smart
Ronald Butler
Matty b cheat
oliva hashtag
Sierra is smarter then matt
oliva hashtag
l want to live in California because Matt lives in California
Christa Tapia
Matty cheated
Blue Samelite
A doe is a female deer, a dawn is a baby deer. I'm literally in 2nd grade.
Nelly Alvarado
how come Sierra is smarter then Matty B and Sierra is very little for her age
Single Life
i love your music. videos 😍
Nadia Nicole
Rockstar is so gross why do you like it you are so so gross tell me why you like it hoo you do not know anythingπŸ’©πŸ’©πŸ’©πŸ’©πŸ’©πŸ’©
Jason Muniz
yuck matt
Jessica Klase
SIERRA IS SMART FOR HER AGE
Jorda434Haile434
what grade is sierra
The Kids
goodli is not a word you are cute but stupid
Sonia Augustyniak
pij to
Jamie Ayers
serra is smarter then matt
Jennifer Hawes
Venus
Valentina NuΓ±ez
q son ellos
Cedrik Roker
love y'all so much
Evelyn Villamar
cheater matt cheater be honesty
Asia Forge
my name is Asia
Mario Leva
MattyB MattyB no cheating
elisia Cheshire
sriea is smart for her age 🐼
Katerina Koutraki
sierra is more beautiful than matty stupid
Elijah Fabbricante
Asia is the best
Laugh Pail
the sun is a star matt
Starla Tallant
I think Sierra one
Madison Brooks
Sierra is so cute
Emma Wu
MATTY THE SUN IS A BIG STAR!!!!!
Emma Wu
Matty... You have messy hand writing, but whatever LOL
Farhiya Hassan
go to the one lyrics Justin b there are a lot of people are
CaptainKostasGR
the sun is a star what are you talking about xD
D'Angelo RAGEusell
i mean matt
D'Angelo RAGEusell
but siera and mat likes echother a little bit
D'Angelo RAGEusell
brook wilkinson no gracie hachac and mattyb dated
D'Angelo RAGEusell
i have a crush in mattybraps
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