Good songs to sing for a 13-18 year old for exams?

Hi, I was wondering if anyone knows any good songs to sing for exams that are suitable for a 13-18 year old (It can be just suitable for a 18 or 15 or whatever) . I don't mind opera, pop, rock, blues any genre! It can even be in any language but if you advise a song, could you please make sure that I can find the lyrics on the internet somewhere; not an unknown song. Thanks and I really appreciate this!

Good songs to sing for a 13-18 year old for exams?symphony

Ain't no sunshine. Great song. Also takes talent to sing.

Just change 'she' to 'he' if you're a girl.

http://www.lyrics007.com/Bill%20Withers%...

Ain't no sunshine when she's gone.

It's not warm when she's away.

Ain't no sunshine when she's gone

And she's always gone too long anytime she goes away.

Wonder this time where she's gone,

Wonder if she's gone to stay

Ain't no sunshine when she's gone

And this house just ain't no home anytime she goes away.

And I know, I know, I know, I know, I know,

I know, I know, I know, I know, I know, I know, I know,

I know, I know, I know, I know, I know, I know,

I know, I know, I know, I know, I know, I know, I know, I know

Hey, I ought to leave the young thing alone,

But ain't no sunshine when she's gone, only darkness everyday.

Ain't no sunshine when she's gone,

And this house just ain't no home anytime she goes away.

Anytime she goes away.

Anytime she goes away.

Anytime she goes away.

Anytime she goes away.