5 Seconds Of Summer Fan Injured By Drumstick

The fan, Mady Joe, took to Twitter.com after the show in Illinois and posted a picture of herself sporting the wound.

She added the caption, "When you get hit in the face with Ashton's drumstick @Ashton5SOS (sic)''.

She reportedly required stitches.

Irwin spotted her tweet and later responded: "Apparently a girl got hit by a drum stick tonight... I can not express how incredibly sorry I am... I am so sorry."