"Teeth" is a song by Australian pop rock band 5 Seconds of Summer, released on 21 August 2019 as the second single from the band's fourth studio album Calm. It also appears on the third season soundtrack of the Netflix series 13 Reasons Why. Written by band members Luke Hemmings and Ashton Irwin with Ali Tamposi, and produced by Andrew Watt and Louis Bell, the track features guitar from Tom Morell... Wikipedia