The dog is a great talent and has many offers since the first audition. If you missed Simon showing off his chest it is around the 1:50 mark. Interestingly enough, latere in the clip he has closed up the shirt a bit...wonder if someone said something to him in his ear.
Here is Pudsey doing his Flintstones routine..while Simon Sings along
http://www.youtube.com/watch?v=dv_gOBi8Wpk