Gaana , as from its name you can know it is about music . It is my favourite music destination after youtube. The app is very easy to operate and lag free , no bugs faced till now and you will find almost all the song and music in this app .
The best part is it has a referral option and if you invite your friends and the put your referral code you gat 30 days of gaana plus features .
You can connect it to facebook and share your playlist , your fav songs , so that your friends too can listen to it .