The year's funniest cat videos will be shown.
Internet sensation Lil Bub will be there. The feline was prowling around Oakland Friday getting ready to meet her fans.
Her owner says she's a superhero.
"I think it's her looks that people are first attracted to, but I think her amazing story is what people stick around for," Mike Bridavsky said. "She's very inspirational. Most of the messages are people thanking me for posting pictures of her because it gets them through their day."
The festival runs from 3 p.m. - 10 p.m. The videos will be shown on Oakland's "great wall" located at West Grand Avenue and Broadway.