Group World Records  

64 people from Strathmore Municipal Library danced in a conga line.

Jacques J. and three other tattoo artists tattooed each other simultaneously in circular formation, a RecordSetter.com World Record. The tattoos are Invader Zim tattoos. It took the artists 45 to 60 minutes to finish the tattoos.

During the sixth annual "Ready, Set, Wear It!" campaign, 10,917 people gathered at 257 events to set a world record for the largest group of people to wear life jackets. The event was hosted by the National Safe Boating Council in partnership with Canadian Safe Boating Council. They set the record to promote safe and responsible boating for National Safe Boating Week and throughout the boating season. See photos of the events here. For more information, visit Readysetwearit.com.

Chantel and her partner flipped a 65-kilogram tire 1.6 kilometers in 48 minutes, 31.00 seconds.

The people at Goodmans LLP contributed a total of 68 dishes to their annual potluck dinner. The potluck was organized as part of their series of summer events and to enjoy the culinary expertise of the employees

Vivien and 93 people sang while sitting and standing on stepladders.

At the Zappos.com Bay to Breakers road race in San Francisco, California, 16 people set a world record for Largest Potato Chip Sharing Circle. The record was one of 40 set that day, allowing the race to set an additional record for “Most World Records Set at a Road Race.” See all 40 records at RecordSetter.com/Zappos.

At the Zappos.com Bay to Breakers road race in San Francisco, California, 11 people set a world record for Largest Group Of Runners To Reenact The Slo-Motion Scene From "Chariots of Fire." The record was one of 40 set that day, allowing the race to set an additional record for “Most World Records Set at a Road Race.” See all 40 records at RecordSetter.com/Zappos.

At the Zappos.com Bay to Breakers road race in San Francisco, California, Shirtless Runner set a world record for Most Selfies Taken With People Who've Finished A Road Race. The record was one of 40 set that day, allowing the race to set an additional record for “Most World Records Set at a Road Race.” See all 40 records at RecordSetter.com/Zappos.

Blairgowrie Dental Care principal dentist, Dr. Claire Williams, performed 40 toothbrushing sessions in 20 seconds. She set the record to celebrate National Smile Month in the UK, supporting the British Dental Health Foundation.

At the Zappos.com Bay to Breakers road race in San Francisco, California, 50 people set a world record for Largest Shoelace Tying Circle. The record was one of 40 set that day, allowing the race to set an additional record for “Most World Records Set at a Road Race.” See all 40 records at RecordSetter.com/Zappos.

At the Zappos.com Bay to Breakers road race in San Francisco, California, 17 people set a world record for Most People Dancing “The Robot” Without Listening To Music. The record was one of 40 set that day, allowing the race to set an additional record for “Most World Records Set at a Road Race.” See all 40 records at RecordSetter.com/Zappos.

At the Zappos.com Bay to Breakers road race in San Francisco, California, 13 members of the Zappos Team set a world record for Longest Centipede Limbo Line. The record was one of 40 set that day, allowing the race to set an additional record for “Most World Records Set at a Road Race.” See all 40 records at RecordSetter.com/Zappos.

At the Zappos.com Bay to Breakers road race in San Francisco, California, 315 people set a world record for Most People To Drink From A Coconut Water Ice Luge. The record was one of 40 set that day, allowing the race to set an additional record for “Most World Records Set at a Road Race.” See all 40 records at RecordSetter.com/Zappos.

At the Zappos.com Bay to Breakers road race in San Francisco, California, 32 people set a world record for Most People Wearing Fake Mustaches To Scream “We Love Tom Selleck!” The record was one of 40 set that day, allowing the race to set an additional record for “Most World Records Set at a Road Race.” See all 40 records at RecordSetter.com/Zappos.

At the Zappos.com Bay to Breakers road race in San Francisco, California, 30 people set a world record for Largest Group To Say “Live Long and Prosper” While Wearing Spock Ears. The record was one of 40 set that day, allowing the race to set an additional record for “Most World Records Set at a Road Race.” See all 40 records at RecordSetter.com/Zappos.