Deryck Whibley of Sum 41 seems to be writing songs with 5 Seconds Of Summer for their next release, whether it makes it on an album or not. A tweet from Michael Clifford of 5SOS can be found below.

also getting the chance to write with someone who’s in one of my favorite bands of all time was amazing pic.twitter.com/e5eX3PWGqx — Michael Clifford (@Michael5SOS) February 13, 2015