Philadelphia, are you feeling catty?

The Catsbury Park Cat Convention is expanding to Philly for a gathering of celebrity felines, vendors, non-profits and recuse organizations on Sunday, Oct. 27.

Happening at the storied 2300 Arena, the event also will have a pop-up cat cafe, with on-site cat adoptions available.

Proceeds from the convention will benefit Catsbury Park, a nonprofit feline rescue and cafe that opened in Asbury Park in 2017. Since then, it's secured homes for nearly 500 cats, found a fan and supporter in pop star Kesha and seen the launch of its Catty Corner podcast.

Catsbury Park also launched its nonprofit Cat Convention in Asbury Park in 2018, drawing thousands of attendees to city venues and raising more than $40,000. Iconic cat Lil Bub made Asbury Park appearances in 2018 and 2019, and she'll be in attendance in Philadelphia this weekend.

Based in Bloomington, Indiana, Lil Bub has appeared at countless cat conventions over the last six or so years. Her "dude," Mike Bridavsky, said that the Catsbury Park convention was their favorite.

"It's one of the only ones where exclusively all of the proceeds benefit animals in need," he told the Press this spring. "Beyond that, it's the people that put in on that are just really great."

Bridavsky and the Catsbury Park team each come from the D.I.Y. rock world — he's a recording engineer, producer and musician who owns and operates Russian Recording in Bloomington, while Catsbury Park owner and founder DJ Bornschein worked with Jersey punk legends the Bouncing Souls for nearly a decade.

Lil Bub's appearance last year began a relationship between her and Catsbury Park that's also included Bub arranging for donations of food and litter for the organization via her partnerships with Halo pet food and Scoop Away litter.

Bub's Philadelphia appearance will include her and Bridavsky's presentation "The Story of Lil Bub," and tickets are sold out for her meet-and-greet session.

Sunday also will mark one of the final live appearances for Lil Bub, who turned 8 in and was born with a number of genetic anomalies. She’s a “perma-kitten,” who will stay kitten size for life, and has an extreme case of dwarfism, resulting in her limbs being disproportionately small compared to the rest of her body.

In addition, Bub's lower jaw is markedly shorter than her upper jaw and her teeth never grew in, resulting in her tongue always sticking out of her mouth. She is a polydactyl cat, giving her an extra toe on all four paws, and in recent years she has dealt with a bone infection adding mass to her jaw, a symptom of osteoporosis.

"She's so small and innocent and has all these genetic abnormalities that seem like they would deter her from doing all this stuff but despite all that she's a published author, she's a talk show host, she's a Billboard-topping artist," Bridavsky said of the power of Bub.

"And so people are rooting for her and cheering for her and at the same time really respect her and are inspired by her. She's like this completely pure source of all that is good, is the way that I see it. And it's not like some persona I've created for her, it's who she really is."

Catsbury Park Cat Convention

When: 11 a.m. Sunday, Oct. 27

Where: 2300 South Swanson St., Philadelphia

Tickets: $20 for general admission

Info: www.catsburyconvention.com