Britney Spears: Rumble Over Bumble

Britney Spears is entangled in a raging dispute over the Bumble dating service … TMZ has learned.

Britney’s lawyer fired off a threatening letter to Adam Kluger, claiming he went behind Britney’s back and negotiated with Bumble to fund her new music video.

According to the letter, obtained by TMZ, Kluger allegedly told Bumble he had authority to rep Britney for an $800,000 deal that would put the Bumble name all over her new vid. The lawyer says Bumble agreed and gave Kluger $200k up-front. Kluger then made a deal with Britney’s label, RCA, to pay them $450,000 for the Bumble product placement promotion. Continue reading at TMZ…