Simon Cowell has said that One Direction will need to up their game due to 5 Seconds of Summer's growing popularity.

Speaking to The Daily Star Cowell said, "It does mean 1D have to up their game a bit. We knew a lot of boybands would follow but the competition is tough at the moment."

Cowell also commented on the fact that 5SOS supported 1D on their most recent Where We Are stadium tour, "I think it was a strange decision. A bit like the cuckoo in the nest."