There has been no official confirmation of their break up, but the rumours about Nathan Sykes and Ariana Grande love life continue.
The Wanted star, from Gloucester, is said to have split with the American pop princess last month.
Nathan, who was back home for Christmas, is currently sleeping off the split.
He tweeted this weekend that he'd had the longest sleep, after saying: "My brain works far too fast for my own good. I'm always thinking about everything. It's so annoying! Sometimes it's good to just switch off!"
Ariana was linked to Entourage actor Adrian Grenier, but tweeted that she didn't even know who he was.
One magazine, Star, said she was spotted getting cosy with the 37-year-old actor at an industry party in December before leaving together.
A source told the US magazine: "They were very flirty."
But she then tweeted: "Who the hell is that? Lmao I'm sure he's lovely."