Justin Bieber, Kim Kardashian and Jennifer Aniston were Bing's most searched celebrities in 2011, according to the search engine's annual report.

From his relationship with Selena Gomez, to his world tour, his Christmas album and of course, his paternity lawsuit, Bieber fever was in full effect in 2011. The 17-year-old Canadian superstar was also the most searched musician of the year, beating Katy Perry, Jennifer Lopez, Britney Spears and Lady Gaga. On both lists, Bieber is the sole male celebritiy.

Kardashian, who topped the list in 2010, was also a popular search on Bing, thanks to her high-profile wedding to Kris Humphries and their disastrous divorce 72 days later.

Despite the success of her album Born This Way and her strong Twitter presence (she currently has more than 16 million followers, with Bieber close behind), Lady Gaga dropped number 3 to number 9 on Bing's most searched celebrity list.

Besides celebrities, Bing's report also highlighted the most searched news stories, TV shows, movies and celebrity events.

The Royal Wedding of Prince William and Kate Middleton proved to be a popular search, as was the Casey Anthony trial. American Idol beat Dancing with the Stars as the most searched TV show and most searched reality TV show in 2011, while all three Kardashian sisters (Kim, Khloe, Kourtney) made the top 10 most searched reality stars list.

Here are Bing's 10 most searched celebrities of 2011, with Justin Bieber leading the way.

Miley Cyrus
Miley Cyrus Keeps Her New Year's resolution: To Cut down or quit her habit of smoking REUTERS
9. Lady Gaga
From the release of “Born This Way” to her eye-popping performances at award shows around the world, Lady Gaga has been a dominant figure in the music industry and beyond. She surprised -- and impressed many -- when she showed up at the MTV Video Music Awards dressed as her male alter-ego, Jo Calderone. REUTERS
8. Megan Fox
While Megan Fox was absent from Bing’s most searched person list in 2010, the 25-year-old beauty was a popular choice for many in 2011. Fox had a relatively quiet year, professionally, appearing in the drama “Passion Play,” which received mostly negative reviews from critics and fans. REUTERS
7. Katy Perry
Katy Perry had quite the year in 2011, thanks to her album “Teenage Dream.” Just last week, Perry surpassed Michael Jackson’s record for having the most number one singles from the same album to appear on Billboard’s Hot 100 chart. “Teenage Dream” has sold more than 1.9 copies since its release in 2010. REUTERS
6. Britney Spears
Since the release of her seventh studio album “Femme Fatale,” Britney Spears has enjoyed somewhat of a comeback year. “Femme Fatale,” Spears’ first album in three years, is also the first to release three top ten singles in the U.S., including her number one hit, “Hold It Against Me.” Spears turns 30 on Dec. 2. REUTERS
5. Jennifer Lopez
Jennifer Lopez’s popularity can be attributed to several personal and professional events in 2011, including her divorce from Marc Anthony and the release of her first album in four years, “Love?” Lopez, 42, has been recently linked to her back-up dancer, 24-year-old Casper Smart. REUTERS
4. Lindsay Lohan
Jail, community service and court appearances were just some of the things Lindsay Lohan was busy with in 2011. Lohan’s popularity surged in November, when the actress announced that she had completed a nude photo shoot for Playboy. REUTERS
3. Jennifer Aniston
Jennifer Aniston has always remained a favorite on celebrity lists, such as most-paid, top-earning and most beautiful. In 2011, Aniston appeared in two films, “Just Go With It” with Adam Sandler and “Horrible Bosses” with Jason Bateman. The 42-year-old’s popularity as of late can be attributed to her relationship with actor Justin Theroux, who appears in a 2012 comedy “Wanderlust,” with Aniston. REUTERS
2. Kim Kardashian
Despite spending millions of dollars, months of preparation and hiring E! to document her fairytale wedding, Kim Kardashian had enough and filed for divorce from NBA star Kris Humphries after 72 days of marriage. Unfortunately for the reality TV star, the early days of her relationship with Humphries made the final cut for her show, “Kourtney & Kim Take New York.” REUTERS
Justin Bieber
Baby scandal. Christmas album. Selena Gomez. Bieber fever. Cue screams. REUTERS