Louis Tomlinson is defending Justin Bieber's decision to pull out of his world tour.
The Canadian singer recently announced that he was cancelling the rest of his 'Purpose' tour because of unforeseen circumstances and his manager apologised to disappointed fans.
Louis has now shared his views on the subject - he's told a US radio station that when you sign up for something, you should see it through.
However he's insisted that it's also important for people to take good care of their mental health.