Katy PerryKaty Perry is not a fan of artists' blatant product placements, which she expressed following the release of Britney Spears' most recent 'Hold It Against Me' video.

In the video, Spears holds her own perfume, Radiance, and plugs cosmetics company Make Up Forever, online dating site Plenty of Fish and Sony.

Marina Diamandis of Marina and the Diamonds, first tweeted, "What is consensus on product placement in videos? As a fan, do you prefer product placement if it means bigger budget vid?"

Perry responded to Diamandis, tweeting, "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."

Watch Britney Spears' 'Hold It Against Me' video after the jump.