SAN FRANCISCO--(BUSINESS WIRE)--Plenty of stars, from Jessica Alba and Kate Hudson, to Ashton Kutcher, and Dr Dre, have started dabbling in entrepreneurship. But, according to a Xero survey of small business owners1, maybe some of them should stick to their day jobs. In honor of World Entrepreneurs’ Day, cloud-based accounting software company, Xero, polled small business owners across the globe to find out which celebrity entrepreneurs most inspire them — and which they’d least like to work wi