1) Somersault 2) Trampoline stunt 
Summersault was a Canadian music festival organized by the band Our Lady Peace in 1998 and again in 2000. Summersault 1998 was held in Barrie, Ontario, at Molson Park, St. John`s, NL and Shediac`s | Centre for Speed in NB while Summersault 2000 toured to eight Canadian cities. ==Summersault 1998 lineup== xxx ==Summersault 2000 lineup== ==Summers.....[Australian festival] Summersault was a music festival put on by promoter Steve Pavlovic that toured Australia in the summer of 1995/1996. ==Locations and dates== The five shows on the tour were: ==Full lineup== All Shows Also featured Melbourne only Sydney only Gold Coast only Adelaide only Perth only http://www.mtv.com/news/articles/50681...
• (n.) Alt. of Summerset
somersault.