Reminder

Reminders are things to help you remember something. It may also refer to:
Music

"Reminder" (song), a song by The Weeknd from his 2016 album Starboy
 Reminder (album), a 2012 album by Pixel
A Reminder, a 2011 EP by Drake Bell
The Reminder, a 2007 album by Feist
"Reminder", a song by Mumford & Sons from their 2012 album Babel