Rita Ora thinks Jay Z smells like ''a clean tree''.

The 23-year-old singer, who is signed to the rapper's record label ROCNATION, admits the 'Holy Grail' hitmaker has a ''fresh'' odour that just oozes nature.

She said: ''He [Jay Z] smells like a clean tree. Like, so clean and fresh.''

The 'RIP' hitmaker - who is dating Calvin Harris - admits was really nervous when she was introduced to Jay Z's wife Beyonce for the first time because she is someone she's admired and looked up to from a young age, but she insists she was surprised by her down-to-earth personality.

Speaking on heat Radio today (05.04.14), she explained: ''I was so scared [when I first met her]. She's the idol I've always wanted to meet. I mean, one of, but she was like the nicest. I've always, always, always thought she wasn't human. And I swear I always think that she puts a plug in a socket at night and sleeps standing up or something because she's not human. But she was incredible, so kind, so honest, so caring, and so approachable.''

Although the blonde beauty doesn't think anyone is allowed to babysit Jay Z and Beyonce's two-year-old daughter Blue Ivy, she admits she'd jump at the chance if she was asked.

She said: ''If they asked me [to babysit Blue Ivy], I'd definitely do it.''