This is what they say:
Talking to the Sun newspaper on Thursday, Jon said that he had no idea Paul was going to leave, and Bradley said there hadn't been a row.
But they were all delighted, and Hannah said it might help their relationship!
Here is some more of what they said to the Sun:
We are strong enough to continue without Paul but we will miss him."
I'm sad I won't see as much of him but we have a strong relationship. Being apart might be healthy for it."
There hasn't been a row, he just wants to do his kind of music."
We have been together for four years and it would not be fair to bring in an outsider."
There was no point in trying to talk Paul round. S Club is about being happy and enjoying being in the group."
The most important thing is being true to yourself - and Paul was never a pop tart."