These two have been talking about one another a lot lately...
Between Katy saying that Niall's always trying to get her number and Niall saying he wants to be her friend, we can't keep up.
Why do they keep being linked?
Of course, Niall has a lot to thank Katy for; back in 2010 it was Katy's third 'Yes' on the X Factor that got Niall through to the next round; One Direction were formed afterwards.
The pair cosied up on Katy's Instagram star, with Katy playfully accusing Niall of 'following her'.
The snap was captioned "stage 5 clinger"; is there a worse way to insult an Irish young fella?!
