Tekashi 6ix9ine is going OFF on Ariana Grande & Justin Beiber -- claiming Billboard is manipulating the music charts to cheat him out of the #1 spot!
Tekashi 69 just posted a scathing video on Instagram, explaining why he believes the music industry is "illegally" stealing his rightful crown away from being at the very top of the Billboard charts.
Not only is he upset, but the rainbow rapper also says he can actually prove it and is sharing it with the world!
"BILLBOARD DONT LIKE TATTLETALES😒@billboard explain this to the millions of artists who never got #1 because you guys play favorites," he captioned the video.
Take A Look!