During an off day from his day job with the Cleveland Cavaliers LeBron James surprised customers at a pizza shop in Los Angeles.

James, one of the most recognisable sports stars in the US, took part in a viral ad for Blaze Pizza in Pasadena and shocked the public by appearing as new worker ‘Ron’.

The reactions to Ron’s appearance are brilliant, as they range from star-struck to asking if he was fellow basketballer Dwyane Wade.

One poor guy looks fit to burst after seeing LeBron and we really hope he got an autograph after!

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Given the message at the end of the video, this might not be the end of ‘Ron’ just yet.