Sarah Harding is still a tenant of the Celebrity Big Brother Season 20 pad, but it's safe to say she's not welcome in Fifth Harmony's house anytime soon.

The Girls Aloud member, who's been filming the reality show since August 1, started a girl band firestorm during filming this week when she unleashed friendly fire on 5H. During a conversation with Chad Johnson, Harding came out swinging against Lauren Jauregui & Co., and didn't back down.

"The slutty ones?" Harding asked. "Yeah. They all wear next to nothing. All the girl bands these days. Slutty, slutty, slutty. Sex sells, sex sells."

"We used to have to do proper dance routines," she added. "They just do slut drops now."

Yikes x 10.

Unsurprisingly, Harmonizers weren't thrilled with Harding's words, and immediately called her out on Twitter for slut-shaming.

"Imagine being bitter about girlbands who have a career while you're on TV trying to resurrect your own," one fan wrote while another noted "Ok I really really like Sarah Harding, she was one of my first idols, but what she said about 5H is unacceptable #SarahHardingIsOverParty."

Cutting Celeb-on-Celeb Disses:

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