Psy teaches Betty and her pranksters how to dance Gangnam style; a jogger steals food from a restaurant patron.

Betty gives Kim Kardashian wardrobe and makeup advice before a night out; a man sells hot dogs from his trench coat.

Stunt performer Steve-O participates in sketches with Betty; a woman steals liquor out of someone else's shopping cart; a customer falls asleep on a bed in a department store.

Singer Nick Lachey give Betty advice; a senior tries to enforce a height requirement at a basketball game arena; a man tickles a stranger with a feather.

Fashion designer Nicole Richie joins Betty and the pranksters.

Fashion designer Nicole Richie joins Betty and the pranksters.

Actress NeNe Leakes helps Betty and the seniors play pranks as reactions are caught on camera.

Reality-TV personalities Adrienne Maloof, Camille Grammer and Kyle Richards participate in a photo shoot with Betty.

Some of the funniest pranks from season one include writing tickets for made-up violations, offering a stranger $500 for their pants, and flying with balloons.

TV host Nick Cannon discovers Betty's dark side; an elderly man in a bathrobe looks for the art class in which he will be a nude model; a lady who offers to take pictures of tourists turns the camera on herself; a prankster sanitizes shopping carts.

Pranks include sperm solicitation, park proposition, wife-watcher, senior rhymes and Betty's game night.

Pranks include senior raves, Betty's workout, scorpion potion, texting revenge, Hawaiian wishes and Betty's fortunes.

Pranks include mistaken identity, smoking nun, bitter surfer, rude traveler, Nigerian price, supermarket safety check, truth-telling ticket-taker, statue peeper and theater feast.

Pranks include clairvoyant cart, viewer pranks, train station proposition, asleep at the wheel, too-smart phone, coffee calamity, dance instructor, B.O. warning, tray thief, sweet caboose and pranks submitted by viewers.

Pranks include two seniors asking for the location of a rave, a woman asking men to bite candies off her shirt and an elderly man proposing to his girlfriend with surprising results.

Tricksters direct traffic in a grocery store and cut loose in an arcade; a young girl receives a ticket for an absurd violation; bubbles are blown on shoppers.

Favorite moments from season one include a woman asking to cuddle with a stranger, a prankster's tie is stuck under a parked car, and a priest and a nun kissing in a park.

Actor Ed Asner joins Betty and the pranksters; a woman asks for help checking items off her bucket list; two seniors give a jogger a martini; a man's dentures fall into someone else's coffee; a woman sneezes into her husband's ashes.