However, The Sun reports the 'Someone Like You' singer was actually making a rare public outing to talk serious business with his Purple Highness.
A source said the pair are discussing a collobaoration for Adele's highly-anticipated new album.
Adele and Prince
The last time we saw Adele in public she was hanging out with a very different Prince...
Adele picked up her MBE from The Prince Of Wales at Buckingham Palace in December, adding another trophy to her cabinet full of Oscars, Grammys and Brits.
The songbird has kept a low profile since giving birth to her son Angelo last October.
She is rumoured to be back in the studio now, recording the follow up to her multi-platinum album, '21'.