Sheffield golden girl Jessica Ennis has been out and about with a new look – all in the name of helping other athletes.
The London 2012 Olympic heptathlete champion, from Dore, donned a blonde wig and glasses as she took on the role of roving reporter in London.
VIDEO: Press the play button to watch the video.
NOW DO THE JESSICA ENISS POWERADE CHALLENGE: Watch the video then do the Jessica Ennis Powerade Challenge - CLICK HERE.
Jessica, a former pupil at Sharrow Primary School and Dore’s King Ecgbert School said: “I went undercover in Hyde Park for the Powerade Challenge and gave an amateur athlete a nice little surprise.”
Jessica, who is sponsored by Powerade, took on the role of interviewer as she and a film crew stopped fitness fanatics in Hyde Park.
Interviewees were led to believe they were answering questions for a programme about keeping fit – before the 27-year-old star revealed her true identity.
Jessica then handed one amateur athlete the chance of an hour’s training session led by the gold medal-winning athlete, including drills and using equipment from a medicine ball to a park bench.
The event was part of Powerade’s You Have More Power Than You Think campaign.
A Powerade spokesman said: “Jessica shows an amateur athlete he has more power than he thinks.
“This is Jessica as you’ve never seen her before: in disguise and undercover, surprising a random jogger in Hyde Park with the training session of his life.”