It's a fun game, but the monetization is way too strong. You have such a small amount of songs and even if you watch every ad given to you you'll still be replaying the same seven songs even three days into the game. One song costs 150 gems. You get 5 gems per day. 30 days of logging in will get you one RANDOM song. Five pounds can buy you TWO random songs. Just play a different one this isn't the only rhythm game, it's not even hard every song I've done I've had at least 5 stars first try..