But Crufts organisers have now started an investigation into claims that Danny had surgery to improve his looks.
'Jealous'
Pets who have had their appearance changed in any way are banned from entering the competition.
Danny's owners told The Sun newspaper that Danny did have an operation last summer, but they say it was to help his breathing and nothing to do with his looks.
They reckon the rumours have been made up by people who are jealous of Danny's success.
"People will say anything to make mischief. We haven't done anything wrong," said Bert Easdon, who co-owns Danny with Philip Martin.
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