But these catchy films also let people see the humanity of your brand. Video content can make people feel good about you, your company and your products. And those positive vibes are priceless.

Here are some examples I like.

Dancing Inmates Promote Michael Jackson’s ‘This Is It’
Sony is banking on hundreds of prison inmates performing a dance routine inspired by the Michael Jackson documentary “This Is It” to sell copies of the film’s DVD.

156 Countries Sing Together for the Starbucks Love Project
On Dec. 7, Starbucks posted this feel good video of people around the world singing “All You Need Is Love.” They also launched Starbucksloveproject.com, where visitors can upload webcam videos of themselves belting out the song. Brew up some good feelings and, hopefully, lattes will sell.

Coca-Cola Smiles Thanks to ‘Happiness Machine’
This video captures the unscripted reactions of college students as a Coke machine doles out free soda, pizza, flowers, balloon animals and more. You can’t help but feel good watching this.

Piano Stairs Take Volkswagen to the Top
The Fun Theory inspires the audience, encouraging people to come up with fun ways to do the right thing. Watch all the videos at TheFunTheory.com, and you’ll learn how the amusing campaign earned Volkswagen a fun new ethos.

Sony Celebrates JK Wedding Dance
Sony could have laid down the law, demanding that this couple strip out Chris Brown’s song “Forever” from their wedding video. Instead, Sony saw the millions of viral views as a chance to sell more Chris Brown music. Smart move, Sony.

Share Your Favorite
Which one of these do you like best? Do you have other examples of viral videos that are helping brands? Leave me a comment and share your thoughts.