Why cant I control my music from my lock screen?

[AC Question]

I don't want to have to keep typing in my password so that I'm able to change a song that's playing on my phone. Before the latest update i use to be able to change it via the lock-screen but i cant seem to find that same feature again. I know its possible because my friend with the same phone has the music control on his lock screen he just claims that it never went away. Please Help.