Pretty Evil Prank of the Day: Ah, the ol' "heart attack-inducing apparitions emerging from the walls" gag.

Works every time.

[b3ta.]

This Will Not End Well of the Day: Jackass, featuring guest director M. Night Shyamalan.

[reddit.]

Justin Bieber Impersonation Prank of the Day: Step 1) Dress like Justin Bieber. Step 2) Step onto the roof of the Holiday Inn in Zürich where he is known to be staying. Step 3) ??????? Step 4) Hundreds of shrieking fangirls.

[epicponyz.]

Pedestrian Light Prank of the Day: Not content to wait for the weather to hilariously malfunction the local pedestrian crossing lights, merry vandals in Nimwegen, Holland took matters into their own hands, hacking into the town's traffic light system to give the green dude a frisky green companion.

"People kept pressing the button to see the couple having sex a

Next-Level Prank of the Day: Ah, the old "young Japanese girls turn into old Japanese men" gag. Works every time.

[reddit.]

April Fools Day Winner of the Day: As the dust settles on April Fools Day 2011, a clear champion has emerged: Fox 5 News anchor Raoul Martinez managed to cleverly convince his co-host Shally Zomorodi, during a live morning newscast, that a new iPhone/iPad app would allow her to taste and smell the images on the screen.

Needless to say, the snozberries did not taste like snozberries, and and instant classic was born.

[@mas

April Fools Day Round Up of the Day: Redditor swampgum upgraded Reddit's classic "Voice Activated Printer" prank with a stylish, official-looking, print & paste instruction sheet for hours of guaranteed hilarity.