Here are the answers for level 4. Please note that the answers may not be in the same order here as they are in your game.
| TEARS IN HEAVEN | KE HA |
 |  |
| I WANT IT THAT WAY | KATY PERRY |
 |  |
| BRUNO MARS | JOHN LENNON |
 |  |
| TAKE THAT | A THOUSAND YEARS |
 |  |
| JUSTIN BIEBER | EAGLES |
 |  |
| TAKE A BOW | GREEN DAY |
 |  |
| LOVE | PUMPED UP KICKS |
 |  |
| EMINEM | NEW YORK NEW YORK |
 |  |
| NO WOMAN NO CRY | I SWEAR |
 |  |
| GRENADE | LED ZEPPELIN |
 |  |
| CLOSER | TELEPHONE |
 |  |
| FIX YOU | LOUIS ARMSTRONG |
 |  |
