Adele (I think) ADELE
Guns 'n' Roses sung "Welcome to the Jungle"
The 70's song "How Do You Do" (1972) was recorded and sung by artist Mouth & McNeal.
Frentei
I would have to guess BB King
In the semi-final, they sung Only girl in the world by rihanna, then chasing cars
Without You was sung by Usher but the artist is David Guetta.
She is a solo artist, it was her singing it.
Mariah Carey - Obsessed
The artist who wrote the song mine is Taylor Swift.
I'm not sure about the spelling of his last name, but the artist is Steve Warrenner. Its Steve Wariner and also Blake Shelton sings it.
high school musical
because they were