You can listen radio on BlackBerry with Slacker radio. You can listen over 100 station programmed.You'll have detailed artist biographies, full album reviews and more. Best of all, the music can be stored on your phone so you can listen even when you don't have a connection!
Other feature:
# Unlimited free music on your BlackBerry
# Over 100 expert-programmed genre stations
# High-quality stereo sound over any connection
# Listen even when not connected
# Music plays even while using other applicatio
You can download for free here