Celebrities endorsing products (or making their own!) is nothing new. Ryan Reynolds – Gin Sammy Hagar – Tequila Taylor Swift – Diet Coke Beyonce – Pepsi George Foreman – George Foreman Grill David Beckham – Adidas Now, it’s singer/songwriter/rocker Lenny Kravitz’s turn. He’s partnered with an oral wellness brand called Twice which has a line of toothpaste, toothbrushes, floss, mouthwash, and whitening tools. The products were designed by Kravitz’s own dentist using all-natural ingredients. What’s one of the best or funniest celebrity endorsements you can remember?