YG is proving himself to be a loyal collaborator to producer and friend DJ Mustard by calling out producers he feels are biting the LA beatmaker's sound.

The Compton native recently took a trip across the pond to pay a visit to Tim Westwood and dropped a freestyle where he called out London based trio The Invisible Men, who produced Iggy Azalea's smash single "Fancy," saying they "jocked" Mustard's style.

"And DJ Mustard, that ni**a producers is they jocking/ 'Fancy,' don't it sound like he produced that sh*t?"

Listen to the freestyle above. Do you think the "Fancy" beat is a little to close to the Mustard sound? Sound off below.