Like singers from opera. To catch attention.
121628
because their larynx is still fresh, and their vocal strings are so tight.... and plus, they want attention & fear that they will be ignored. so they will be screaming & their tone is high pitched:D
571162
your voice is probably changing
651980
you could juggle....or sing
536770
They get in the way of the actors' faces.
19410
Listen to what they have to say,
116925
Start by googling The three Tenors and go from there.
121252
Cos they are biaaaaaaches
624779
More than likely they're actors.
620936
Sounds to me like something you would say if you are trying to get someones attention?
37318
because you want attention?
41178
They are neck and neck at the moment
70209
Swing, fling, ring, sing.
304016
I know, it's hard; you're listening intensely to the music, which makes you listen intently to the backup singers.  \n\nYou need to train yourself to have "selective hearing"; try to concentrate just on the music and your own voice.  You know how when you're having a conversation in a crowded room, you put all your focus on just one person?  It's that muscle.  \n\nIt's the difference between "listening" to the singers and "being aware" of the singers.  It's a skill that can be developed--keep practicing!
350567
Some people's accents are very malleable.  These people are usually great language learners and very good mimics.  Actors, for example.
26823
good charllotte all the way bro. they got talent skill and can sing great. the rest r either old or curse to much.
266892
Here are some suggestiosn
234623
They make up for it with hand gestures and an ever increasing pitch of voice.