Miley Cyrus has remained coy as talk of a Justin Bieber duet spreads.

The US star was seen leaving the Canadian's studio recently as she tried to hide from the cameras.

This, of course, ignited rumours that the pair are working together and speaking to E!, Cyrus seemed to suggest there was something in the pipeline. She said:

"I know pictures are flying around. You guys will have to wait and see."

As previously reported, Cyrus announced at Sunday's (May 19) Billboard Music Awards that her next single will be called 'We Can't Stop'.

The track will be released on June 3 as the 'Party in the USA' lady looks ahead to her forthcoming new album.