The two pop stars, who both found fame on "The X Factor," now share the same management company as well, reported Female First.
"We talked quite a lot about collaborating. I just sent him a lot of tunes as I knew he was on the lookout. He has all my back catalogue," Arthur, 28, said.
The "Say You Won't Let Go" hitmaker said he has already sent Tomlinson several songs to listen to.
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