In the eve of the London games, a team of Olympians joined the fun as well.
The United States Olympic Swim Team is the latest to lip-sync and dance to Carly Rae Jepson's summer anthem, "Call Me Maybe." The video, which is posted on YouTube, has more than 600,000 views at the time of this writing -- just one day after the video was uploaded.
UC Davis's Scott Weltz made the Olympic swim team. Can you spot him in the video?
If you want to follow Weltz on twitter, here's his handle: @SwimWeltz