LockscreenAudio is simple app, but oh so important. LockscreenAudio adds music controls on your lockscreen, along with artist name.
New version: shows artist and track name. This application will show audioplayer controls on your lockscreen. Include four predefined themes for buttons. Allows to you select your own image from gallery. Image have to be *.png image 360×42 pixels with transparency. Free for a limited time.
Get it free from Nokia store while you can.
Nokia Store link
Thanks for the tip Keips