Dr Chand, a GP in Greater Manchester, launched his petition earlier this month, which he hopes will force a parliamentary debate in the same way that fuel price campaigners managed earlier this month.
Mr Prescott commented on Twitter on Friday: ‘If we get to 50,000 signatures on this bit.ly/xmasprezza I'll post a video of me singing. Promise! #xmasprezza’
It is not yet clear what his choice of song will be. The petition currently boasts more than 7,000 signatures and has already been backed by shadow health secretary Andy Burnham.