Hey Nephtali,

We've tried to cover some of the music we (collectively) like in the KTV Wednesday series. I'm personally a big fan of Wang Fei's album 将爱 which is where 不留 comes from. You might also like these of hers:

http://popupchinese.com/lessons/ktv-wednesday/wang-fei-sunshine-baby

http://popupchinese.com/lessons/ktv-wednesday/wang-fei-passenger

If you haven't heard him, you might also like Pu Shu:

http://popupchinese.com/lessons/ktv-wednesday/pu-shu-upset-only-fool