Well show you how with this tutorial.

Just press and hold the Home button, then say Repeat followed by what you want to repeat.

The repeat functionality only works if the song comes to an end naturally.

iTouch repeat song option

ios-10-swipe-up-control-center

ios-10-swipe-now-playing-card

ios-10-select-song

ios-10-repeat

iOS9 Repeat

iPhone Repeat Music Option

iOS7 Repeat Options

iTouch-repeat-song-option

iPod-Touch-repeat