Shona
Yes, very well ALIVE!
Well you can't sing in sign language but you could interpret the words to the song. In other words, you can not sing in sign language.
The English word 'sing ' is said in African Abaluhya (Luhya) language as "imbaa".
They Sing in Persian and English both.
Japanese
Latin
Spanish.
Mainly in English. Although they sing some songs in Portuguese.
yep
You need to fingerspell it.
romanian
You can sing English songs during the JYP auditions. You can sing whatever you like.