Adam Lambert has met up with Robbie Williams, leading to further speculation that the two singers might work together in the future.

Both acts have spoken about their desire to duet at some point, with Williams earlier this year reaching out to the "handsome" the US star with admiration.

The singers are currently in Australia, with Lambert still working on the country's X Factor and Williams in the region to promote his new album 'The Heavy Entertainment Show', appearing on the X Factor in the process. On Monday (November 21) Lambert tweeted a picture of the pair.

Lambert has been working on music for the follow-up to his 2015 album 'The Original High', with the singer recently spending time in the studio while on a visit to London.

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