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The video sees her in a pretty yellow dress miming along to the lyrics and moving along to the music, however, some users were far more distracted by the realisation that she played the young daughter of Cam and Mitchell on the hit comedy show.
'My jaw just dropped once I realized', commented one viewer.
Another shocked fan said: 'GIRL IT’S LILY WHAT'
The way she was: She first found fame in the Emmy-winning comedy series in 2011, joining the cast as Lily Tucker-Pritchett when she was just four
'I forgot kids from TV shows actually grow up too' said a third, while another disbelieving user remarking: 'I can’t believe that’s her.'