The Beat-Alls (also known as "The Beat Alls" and "The Beatalls") were a team of supervillains made of Mojo Jojo, HIM, Fuzzy Lumpkins and Princess Morbucks, and they are the titular main antagonists of the episode "Meat the Beat-Alls" of The Powerpuff Girls series.
As the name implies, they are a parody of the 1960s singing group The Beatles, which creator Craig McCracken is a fan of.
When the villains Mojo Jojo, HIM, Fuzzy Lumpkins, and Princess Morbucks pinned the Powerpuff Girls with a boulder, they discovered that together they can be unstoppable. So together, they formed the Beat-Alls.
The Powerpuff Girls were no match for their teamwork attacks, so the girls used a chimp named Michelle (Under the name of Moko Jono, a parody of the late John Lennon's widow Yoko Ono) to get Mojo Jojo to fall in love so the team would have to disband. The team disbanded because they couldn't stand Mojo being in love with Moko. Eventually, a zookeeper named Judy unmasks Moko as Michelle, revealing that the girls used Michelle to mislead Mojo out of the band. When Judy left with Michelle, the girls take the crestfallen Mojo to jail with the rest of the band.
They only appeared as an on-screen team on "Meet the Beat-Alls".