Robert Pattinson and rumoured girlfriend Kristen Stewart managed to enjoy a night of anonymity at a Los Angeles week, according to reports.

The Twilight stars snuck in unrecognised to a concert by the band Jenny and Johnny and succeeded in maintaining their privacy all night, a source told Hollywood Life.

'Almost nobody recognised the two while they were there. Staff was aware, as they get famous people watching shows there all the time and are willing to accommodate their needs if needed,' the insider said.

But concert-goers did spot a serious amount of cosy behaviour between the two, further fuelling speculation that the pair are an item.

An onlooker said, 'They were close to each other with Kristen in front of Rob almost all night. They never hid the fact they were obviously a couple, they were extremely close the entire time they both were there.'