Justin Bieber and Rebecca Black are two of the most searched names of 2011, according to Google's annual Zeitgeist report.

Bieber, the 17-year-old pop phenom, filled his year with plenty of reasons for fans and critics alike to search for his famous name. In February, the Canadian superstar released a 3-D biopic, Never Say Never; the film went on to gross more than $98 million at the box office, and even more in DVD sales.

The rest of Bieber's year included the wrap of his world tour, his highly-publicized relationship with fellow pop star Selena Gomez, the release of his Christmas album, Under the Mistletoe (which debuted at number one on the Billboard 200 chart), and that paternity test.

Google's Zeitgeist report has Bieber as the most popular person of the year, followed by Kim Kardashian and Lady Gaga. Nicki Minaj and Casey Anthony round out the top five.

Black -- the YouTube sensation that populated our days with her song Friday -- tops the Fastest Rising Search list, beating Google Plus, Hurricane Irene and the iPhone 5. Steve Jobs, who was just named Barbara Walters' Most Fascinating Person of the Year, is also on the list.

In March, Black received all sorts of attention when her Friday music video racked up more than 167 million views on YouTube. In the summer, the 14-year-old aspiring singer appeared in Katy Perry's Last Friday Night (T.G.I.F.) music video and even performed on stage with the singer herself. Since her Friday days, Black has quit school, launched her own label, RB Records, and released two more singles, My Moment and Person of Interest.

Another big search of the year was British songstress Adele, who, according to Google, made the fastest rising search lists in more than 15 countries.

On the image front, Planking, Kate Upton and Pippa Middleton are among the top 10, along with Mariah Carey twins.

Hermain Cain tops the list for Fastest Rising Politics Searches, followed by Rep. Giffords, Obama jobs plan and Dominique Strauss-Kahn.

Scroll down for some highlights and a video from the Google Zeitgeist 2011 report. For the complete roundup of the year, visit the Google Zeitgeist Web site.

Most Popular People:
1. Justin Bieber
2. Kim Kardashian
3. Lady Gaga
4. Nicki Minaj
5. Casey Anthony
6. Selena Gomez
7. Charlie Sheen
8. Steve Jobs
9. Amy Winehouse
10. Ryan Dunn

Fastest Rising Searches of 2011:
1. Rebecca Black
2. Google+
3. Hurricane Irene
4. Pinterest
5. Ryan Dunn
6. iPhone 5
7. Casey Anthony
8. Adele
9. Osama bin Laden
10. Steve Jobs

Google Images:
1. Planking
2. Kate Upton
3. Justin Bieber 2011
4. Pippa Middleton
5. Hope Solo
6. Ryan Dunn
7. Mariah Carey twins
8. Rebecca Black
9. Casey Anthony
10. Royal Wedding

Fastest Rising Political Searches:
1. Herman Cain
2. Rep Giffords
3. Obama jobs plan
4. Dominique Strauss-Kahn
5. Cheri Daniels
6. Issue 2
7. Huma Abedin
8. Rick Perry
9. Wisconsin news 2012
10. Republican candidates