Taio Cruz performing at the Bonk night at the Forum in Hatfield on Wednesday, October 21 as last-minute replace for N-Dubz

TWO UK chart-toppers have appeared at the Forum in Hatfield over the past fortnight.

Taio Cruz, who was number one a couple of weeks ago with Break Your Heart, filled in for N-Dubz last Wednesday night.

Teenage rapper Chipmunk, who reached number one with latest single Oopsy Daisy, was the special guest at the 
Forum the previous Wednesday.