Gisele Bundchen Challenges Jimmy Fallon to Plank Competition on The Tonight Show: Wat
 

Gisele Bundchen Challenges Jimmy Fallon to Plank Competition on The Tonight Show: Watch
Gisele Bundchen stopped by The Tonight Show on Thursday, Sept. 4, and challenged Jimmy Fallon to a plank competition, exercising their stomach muscles -- watch **w!This article originally appeared on Usmagazine.com: Gisele Bundchen Challenges Jimmy Fallon to Plank Competition on The Tonight Show: Watch