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ABC News' Andrea Canning and Taylor Behrendt report:

Some are calling Isabella Barrett the new "it" girl on the pint-sized pageant circuit.

"I love being the new it girl," she told "Good Morning America." "I like going on TV shows … I like winning and I like winning money."

The 5-year-old has been featured on TLC's "Toddlers & Tiaras," and she has her very own show, "Beauty Queens," in Germany.

She's even launched her very own lip gloss and jewelry lines.  Her Glitzy Girl charm bracelets carry messages such as "best smile" and "best hair," and part of the proceeds go to charity.

Isabella may be a rising star in the pageant world, but the kindergartner seems to be getting more attention for her antics off the stage.

She was recently captured singing LMFAO's "Sexy and I Know It" inside a nightclub - she was attending a charity event to benefit dogs - and she started a catfight with fellow "Toddlers & Tiaras" star, 3-year-old Paisley Dickey.

Paisley set the Internet abuzz when, for a pageant, her mother dressed her in a costume that mimicked the outfit that actress Julia Roberts' prostitute character wore in the movie "Pretty Woman" - the fitted, skin-baring white blouse, the tight blue mini-skirt and thigh-high, shiny black boots, and the blond wig.

Isabella has also complained that Paisley copies her tanning style. In a video obtained by the gossip website TMZ, Isabella, while inside a salon, says:  "Last time I was here, Paisley was trying to copy me … but my mom doesn't dress me up as a hooker."

Asked why she said such things about Paisley, Isabella replied: "My mom told me to say them."

Her mother, Susanna Barrett explained: "We had a discussion about it … children pick up on things and I should have never pushed my personal views through my daughter. However, the fact still remains that [Paisley] did this and she gained national attention for it."

Paisley's mother, Wendy Dickey, fired back, sending Isabella's mother this message on Facebook: "What you did to my child is going to backfire in your face. It's a shame that you think this is the way for you to get attention for Isabella. You are obviously a sick person to do this to a child. My child and yours. What you did … will not profit you or Isabella."

Barrett explained that her comments were meant as an attack on Wendy Dickey, and not on Paisley, but she acknowledged how it could have been interpreted as an attack on the woman's child.

"That's why I issued a personal - I issued an apology right away and I also reached out to her to say I made a mistake as a mom," she said.

The toddler throwdown is ironic, given that Isabella's cause is anti-bullying. But Barrett says what matters is what she does from here on.

"That's why I want to do the stop, think, feel. I want to stop, think, and feel about what I did and I want to then make it right and I think that everybody, you know, everybody deserves a second chance," she said.

Isabella entered the pageant world following the example of her older sister, Victoria, who  started competing in order to heal emotionally after she was attacked by a group of girls in 2010. As a result of the attack, she had to get plastic surgery to re-construct her face.

"I had four bones broken in my nose and throughout my eye socket and the same thing in the other side it was pretty much like I was pushed over completely," Victoria Barrett, 18, told "GMA."

A therapist recommended that pageants could re-build her self-esteem, and she says pageant saved her.

"I was always a chubby child, I was always bullied and teased even before the incident and then I did it. I took the advice and I did it for the first time and it was great, I actually won the first pageant," she said.