10 Celebs Who Always Play The Third Wheel

By Rachel Bailey /

5. Niall Horan

The cute Irish One Directioner is frequently seen getting in on photos with band mate Liam Payne and his girlfriend Sophie Smith, who have been dating since 2013. While the boyband love between the two looks adorable, who knows what Sophie is really thinking every time Niall tries to bundle the pair or get in on a selfie with them. Strange fact: Liam laid tribute to a song named Illusion to his girlfriend - but guess who it was actually written by? Yup, Niall, that's who. Pretty strange, right? Maybe somebody wants to 'steal his girl' - get it? Anyway. Niall needs to stop being so involved in their relationship and writing soppy love songs, and maybe look for his own girlfriend to write about.