I was just about to make a thread for this, good that i saw this one, though.
Breaking Benjamin-Untill The End
http://il.youtube.com/watch?v=oKKpd5piitc
Miley Cyrus-Make Some Noise.
http://il.youtube.com/watch?v=yz-6JRIIYBk
Miley Cyrus- Life's What You Make It.
http://il.youtube.com/watch?v=pecPSXur5oM
Miley Cyrus-Nobody's Perfect.
http://il.youtube.com/watch?v=r9FzPE9eQU4
Mariah Carey-Hero.
http://il.youtube.com/watch?v=MeipHCpY7wQ
Mariah Carey-Through The Rain.
http://il.youtube.com/watch?v=EetzQsoiknE
Mariah Carey-Can't Take That Away From Me.
http://il.youtube.com/watch?v=6a-bHVHO1SU
Mariah Carey(With Whitney houston)-When You Believe.
http://il.youtube.com/watch?v=CxIN79n4jVo
That's all i can think of for now, i'll edit and add more when more come to my mind.