Have you tried www.lyricstraining.com?  You can play on easy, medium, or hard.  Make sure to sing along and emulate the voice as it can help with accent reduction.

Tightrope- Stephanie McIntosh (Australia)

Find a new way- Young Love (USA)

Special- Garbage (USA)

Take me back to your house- Basement Jaxx (UK)

Tonight- Hurricane Kids (New Zealand)

I have this songs:

1. The Unforgiven - Metallica

2. We are the champions - Queen

3. Yesterday - The Beatles

4. Imagine - John Lennon

Love me do, by The Beatles.

Blowing in the wind,by Bob Dylan.

Norwegian wood,by The Beatles.