CBBC star Sid Sloan made a surprise appearance at Laurance Haines Primary School.
Sid - one of the original CBeebies presenters - visited the pupils on Monday, March 30, to lead a sing song and play games.
Sid was in Watford ahead of his stint as Captain Smollett in The Pirates of Treasure Island, to be shown at Watford Colosseum this April.
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