Zac Efron -- See You on the Flip Side
Zac Efron's entire life was briefly turned upside down the other day -- when the singing, dancing, death-defying man boy attempted a gnarly backflip on a bicycle.
![](https://cdn.statically.io/img/imagez.tmz.com/image/ae/16by9/2011/12/17/aeaeccda0c465040867e17bd1858af36_md.jpg)
It takes Efron two practice crashes in the foam pit before he gathers up enough chutzpah to yank back hard on the handlebars -- but when he finally goes for it, dude is fearless.