RAPPER A$AP ROCKY loves "bad b----es," that's his "f---in' problem" - or so he says in his hit song, "F---in' Problems."

Now the Harlem-bred rapper has a real problem: He's been charged with assault and harassment after a concertgoer at last weekend's Made in America festival - at which he performed - filed a criminal complaint alleging that the 24-year-old hip-hop star slapped her in the face as he waded through the crowd Saturday.

The unidentified young woman said in the complaint that A$AP (a/k/a Rakim Mayers) landed an open-palm slap square on her face, giving her whiplash, as he walked through hordes of dancing fans, some of whom were tugging at his shirt, according to TMZ.

Tasha Jamerson, a spokeswoman for the District Attorney's Office, confirmed yesterday that the charges in the complaint were approved.

A$AP Rocky gained notoriety in 2011 when he released a mixtape titled "Live. Love. A$AP." "F---in' Problems," featuring rappers 2 Chainz, Drake and Kendrick Lamar, is a single from his debut album, "Long. Live. A$AP."

In video of A$AP's performance in front of the art museum during Made in America, he tells a sea of screaming fans, "We gon' dedicate this next song to all my weed smokers," and, between songs later in the performance, says, "Hopefully there ain't no kids around here."

He closed out his performance with "F---in' Problems," part of which goes something like:

Make that thing pop like a semi or a nine/ Ooh baby like it raw with the shimmy shimmy ya, huh

As of last night, a court date had not been set for the rapper, and it was unclear whether he was still in Philadelphia.

It's not the rapper's first brush with the law. In July 2012, he was arrested in New York after allegedly assaulting two people trying to snap photos of him, according to news reports.

Apparently A$AP isn't down with his bad-boy image: During an interview last year, he told an About.com Guide reporter, "I'm a really laid-back dude. I'm not too much of a yeller and stuff like that, you know what I mean?"

On Twitter: @morganzalot
Blog: PhillyConfidential.com