Web users also were interested in subjects ranging from the "Zombie Apocalypse" to the troubled rollout of Obamacare, according to an annual review by Yahoo released today.
Yahoo's 2013 year in review released today said Miley Cyrus dethroned reality TV star Kim Kardashian, who dropped to number two despite her highly publicised pregnancy, divorce and engagement.
Yahoo said swimsuit model Kate Upton was number three, followed by the online gaming phenomenon Minecraft. Next was actress-singer Selena Gomez, and sixth was the troubled rollout of President Barack Obama's health care plan, or Obamacare.
Some other popular items, Yahoo said, were searches related to the "Zombie Apocalypse," and the new USD 100 bill.
Twerking was among the popular "Web obsessions," according to a Yahoo statement, along with "selfies," or self-directed photos captured on a smartphone.
Top food-related searches were "cronuts," a croissant-style of donut, and "how to cook spaghetti squash," Yahoo said.
The most popular search terms were a bit different on Bing, the Microsoft search engine which released its annual review on Sunday for users in 12 countries.
According to Bing, Beyonce dethroned reality TV personality Kim Kardashian as the most searched person on the Internet in 2013 for Americans.
While Beyonce outpaced Kardashian in the United States, according to Bing, she was also number two in Britain, behind Canadian pop singer Justin Bieber. Britain's number three searched personality was Kate Middleton, the Duchess of Cambridge.
In Australia, Miley Cyrus edged homegrown model Miranda Kerr as the most-searched person, ahead of Kevin Rudd, the former prime minister, Bing said in a blog post Sunday.
Cyrus was also number one in Canada, ahead of Britain's duchess and American actress Amanda Bynes.
Brazil, China, India, Japan and Spain favoured their own celebrities: the number one spot went, respectively, to actress Bruna Marquezine, actor Wen Zhang, actor Salman Khan, model Danmitsu and pop star David Bisbal.
The Barbadian singer Rihanna was the top-searched person in France, followed by Kardashian and Beyonce, the blog said.
Selena Gomez was number one in Germany, edging Cyrus and Bieber.
In the United States, the top five most searched people of the year were all women, with only two men in the top 10 Bieber at number six and President Barack Obama number 10.