Singers become friends during her trip to LA
The singer, 23, was in the States working on her new album when he invited her over to his US mansion for dinner.
And friends say they got on famously.
‘He’s got a real thing for Lily,’ a source tells the News Of The World.
‘He loves her honesty and her looks. He also sees a lot of his younger self in her and reckons they’d be really good for each other.’
Lily and Robbie, 34, were also rumoured to have gone UFO spotting.
She has just completed her second album, the follow-up to Alright, Still.