Want to continue playing YouTube songs when the phone screen is locked? In fact, just one trick can make your phone play YouTube music and songs even when the screen is locked!
Step 1: Open the Safari browser
Step 2: Browse the www.youtube.com website
Step 3: Click “AA” and select Website Settings
Step 4: Click to open Request Desktop Website
Step 5: Start playing music/MV
Step 6: You can continue to listen to music even when the phone is locked! Super simple!
A P 
Vivian Wu 
Molly Yen