Samsung M520 Owner's Manual page 201

6.
Press Options ( ) to access the following management options:
Bring to Foreground reactivates the current application
screen. For example, if your music is currently playing in the
background, selecting this option activates the music Player
tab with the song displayed.
Exit Application terminates the currently selected
application and returns you to the standby screen.
Exit All Background terminates all currently active
applications and returns you to the standby screen.
Launch New App allows you to launch an application from
the My Contents listing.
Section 2J: Using Your Phone's Built-in Media Player 175