Katy Perry hits back at Britney feud rumours

Britney uses some of her own products in her video for new track Hold It Against Me, and in a Twitter conversation with Marina & The Diamonds regarding product placement, Perry wrote, 'do it w/style & grace...Not so in ur face like some. U hv to get creative w/it. Some artists don't care tho, & u can tell.'

According to MTV News, some interpreted it as an attack on Britney, prompting Perry to unleash an angry tirade.

She Tweeted, 'Dear tabloid media aka FILTH: pls note I expressed an overall feeling bout product placement, their roles in vids & the art of them being...complimenting or sticking out.

'Most, if not ALL popsters welcome deals w/products 2 offset costs of big budget vids in these recessional...music industry times. I'VE used them in MY vids before & am happy 2b able 2 make a better vid because of.

'Once AGAIN, stop pitting artists..against artist for ur sensational satisfaction & stick to what ur best @: lying, gossiping, exaggerating & overall lending a hand 2 the......deterioration of a generation.'