4. Rachel Bilson for Magnum Ice Cream

When: 2011
Rachel Bilson’s commercial for Magnum caused some confusion for everyone, not just sexually frustrated dudes. Let’s admit it: When we see a close-up of the beautiful Hart of Dixie star in a traffic jam approaching a man in a truck labeled “Magnum,” we think a certain condom company somehow signed a great celebrity spokesperson. It didn’t help clarify the situation when Bilson put the Magnum (the ice cream bar that was actually being advertised) in her mouth.