Scarlet Johannsen! She should stick to acting.

Pierce Brosnan - he sucked at singing in Mamma Mia

Vanessa Hudgens!!!!

i'd have to go with vannesa hudgens. she's not that great a singer.

vanessa hudgens, miley cyrus, and all of the jonas brothers.

vanessa rox but i totally agree about the jonas brothers. they all sound like girls aloud rejects. cascada is shit as well

selena gomez her vioce is wayyy tooo computerized when she sings and miley cryus she just CAN'T sing

Vannesa Hudgens and miley cryus sometimes miley doesn't even sing she just says pink elephant while some recording plays

miley cryus and selena gomez

haha yeah basically any disney channel star.

link

Paris Hilton, Ashlee Simpson, Jessica on most of her songs, lead singer of FlyLeaf and Jonas Brothers! The last to are terrible in concert

Miley Cryus and the Jonas Brothers, they suck

Jessica Simpson CANNOT sing at all!!!!!!!

Miley, JB, Selena, any disney star to say the least.

Oh and 'don't forget' (lol) Demi! she stinks too.

rihanna,britney,ashlee simpson,jonas brothers,paris hilton,lindsey lohan,hayden,girls aloud,and taylor swift is terrible live.
i dont see the point of being a singer if you cant sing live.

actually pierce bronson wasn't half bad. bud miley cyrus and the jonas brothers need to be told that they cannot sing!

Bon Jovi sucks!! I hate his guts!

Miley Cyrus and Paris Hilton. Miley just lip syncs

I think ALOT of celebrities suck at singing, but to name a few:
Jonas Brothers, basically anyone from Disney, and the guy from
Metro Station in my opinion

i love selena,demi, and the lead singer of flyleaf! miley is ok, and the joe-bro's r good but there gay. Paris Hilton SUCKS! and soulja boy on SOME songs,not all. not every one from disney sucks, btw!!!

The Jonas Brothers, I can't stand them.

The jonas b's and absolutely positutely bosulutely Miley Freakin Cyrus!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

Totally Miley Cyrus and The Jonas Brothers. Also, Taylor Swift - even though I hate to admit it 'cause I like her!! Martina McBride and Trace Adkins are both hard on your ears when they sing live too! There's a lot of singers that rely on digital editing in the studio to make their voice sound good on record, and then when people think they're amazing and come to their concerts, they're greeted with some nasty out of tune singing! lol!

Avril Lavigne. Goodness, I'm glad she got married, and chilled out a bit.

Hilary Duff...but she doesn't really sing anymore..maybe there is reason for that...

david cook

Miliey Cyrus, Mixi(idk if i spelled that rite) Vennesa H. Ahd wow 2 mant more

THE JONAS BROTHERS ARE SOOOOOOOOOO NOT GAYYYYY!!!! THEY ARE HOTT AND SEXYYY AND THEY CAN SING THEIR HEARTS OUT- AMAZINGLY TOO. And miley, she CAN sing. She does NOT lip sing. Seriously if you guys think this you are hypocrites that have no lives and clearly are hard of hearing. It takes alot of guts for all these celebs to get up there and sing every day and night and you idiots are gonna sit there calling innocent disney stars- that can sing- gay and say they lip sing. Seriously get a life. They are truly amazing and can sing i bet you that all of you low-lifes cant sing and your saying that ppl that are AMAZING at it cant. all i have to say is- your truly pathetic. Yeah. And Rihanna can sing. So can Allt hose ppl. Taylor Swift- Yeah shes great. Vanessa hudgens- shes ok. But you guys are just crazy, ignorant, pathetic,and STUPID!!!!
~Mrs Nick Jonas
Oh and how are the jobros gay when one is getting married? ANd the other ones are definatly NOTTTTT GAY!!!!

emzielouise r u saying girls aloud r rubbish cause i think they r really good

OMG Demi rox! BUT THE jb SUCK!
I mean miley! who the hell does she think she is, her real name is actually INFINITY!
& OMG!
wooah, woaah, its a party int he USA!
lick my ass! AMERICA will always be the leader and a party!

Jonas Brothers, Miley Cyrus, Demi Lavoto, Mitchel Muso(however you spell that). Most Disney stars but some are ok.

i can't believe no ones sad brittney spears she lip sings and does it bad people walked away from her concert in perth as she was so bad

hey my dad is the producer for hollywood records witch helped all of the singers u just said so my dad knows music and my dad taught me how to listen to a song and u can tell if they r a fake and all the names u just said r real singers i got to meet all o those people i get to meet alot of people but just because u don't like them doesn't mean they can't sing or there bad i hate oprah singers but they sing really good so do u all get what i am saying cause what i am telling u is all true if u want to know one person i think can't sing is britney spears when i met her she wouldn't sing unless we had all the suff to backup her voice she refused to sing live to us but finnalyy she did what u hear on the radio is not her that is audio tuner because she sounds like someone yanked a cats tail its the most terrible singing i have ever heard in my life u can tell shes a fake she could sing when she was little but now she can't sing at all. so believe me i know all the people u just said so thats pretty hard to believe u said those people. but i definetly agree with vampiressJazz she is absolutly right.

Avril Lavigne,Jessica Simpson and JB's. They all suck!

CHERYL COLE CAN'T SING selena rules

I used to love rehanna's music,her videos are all .........

britney spears sucks...all she does is lip sing....heck...i can do better!

Justin Bieber and the Jonas Brothers

cheryl cole :( i like her singin but it gets a bit pitchey

lady gaga is worse than brittany spears! all she does is write songs about stealing peoples HUSBANDS (listen in bad romance where she says "want u in my room when your BABY is SICK" thats disgusting) wears too much makeup, too little clothes, and uses SEX to get peoples attention! shes a trashey WHORE w/ a digitally altered voice.

uhm.. I don't think that Ke$ha really can sing.. She is amazing, but actually.. Sometimes i think she is a little bit fake..
?

Miley Cyrus, Jonas Brothers and Justin Bieber

There are a lot of "talented"- that word is used too loosely nowadays, in my opinion, singers that SUCK.
But just to name a few:
* Miley Cyrus- The kid sounds like a screeching cat who just got run over by a Wal-Mart truck.
* The Jonas Brothers- I mean, EWW. Do I really have to explain that they cannot sing? The put absolutely NO emotion into ANY of their songs. It's a shame really that they're making millions of smackaroos off of innocent little children.
* Justin Bieber. He is just EMBARRASSING to the music industry. I see NO talent in him whatsoever!
* Ke$ha! Another trashy pop star, all she sings about is "Boots & Boys" & is always having a hangover. Oh, how lovely.
* Lil' Wayne! The dude has had too much crack! Okay, we get it! Somebody tape his mouth shut, he sounds even worse than a cat getting run over! Ugh!
Note: Expect me to be adding to this list quite often as I discover more mistakes into the industry I expect getting into myself.

@ LUV_4_BIEBER: Sex sells.

Justin Bieber

Miley Cyrus

The Naked Brothers Band (ewww lol)

Fiona Apple

Brittany Spears

^ I like Britney.

I love Miley and Taylor and Justin's alright. But I agree, Naked Brothers Band? Singing = No no.

I think Justin Bieber sucks at singing. I'm sorry to any JB fans but in my opinion I just don't like him. Who knows? Maybe I'll like his voice better when he grows up a bit. ^_^

Vanessa Hudgens, Justin Beiber, Miley Cyrus, Ashley Tisdale, Lady Gaga etc. there are many more!