6. Avril Lavigne. The punk-pop princess spiked in search thanks to her latest album, "The Best Damn Thing," which reached number one on the Billboard charts and produced two of 2007's top singles: "Girlfriend" and "When You're Gone." Wes Hargrave/Splash News - August 10, 2007
Top Searched Celebrities of '07
See who the top searched celebrities were on Yahoo! for 2007.