(Agencies)
Updated: 2007-12-31 15:20

BEIJING -- YouTube has released the titles of the most popular videos of 2007, with "Obama Girl," "Leave Britney Alone" and "Battle at Kruger" among the favorates, media reported.

The "Obama Girl" video, created by Barely Political, features a young woman singing the praises of US Senator and presidential hopeful Barack Obama.

It has been viewed more than 4 million times and many more times on television after being featured on news and talk shows.

Chris Crocker's "Leave Britney Alone" clip was also a popular video in 2007. The clip is a close-up of Crocker breaking down in tears as he, sometimes hysterically, berates the media and paparazzi for hounding pop singer Spears and implores the public to just leave her alone.

The emotional video is the fourth-most commented on video in YouTube's history.

Also in the list was "Battle at Kruger" with 21 million views. The video captured the battle between a herd of water buffaloes, a pride of lions and a crocodile over a young calf.

Other popular videos included performances by up and coming singers in their bedrooms, including Esmee Denters singing Justin Timberlake's "What Goes Around" or Tay Zonday singing an original composition "Chocolate Rain."

A piano playing cat named Nora and otters holding hands also were among the favorites.

The videos were ranked by the number of times watched, in addition to the most shared, most discussed, top rated and general popularity of clips.