Listen to Ying Yang Twins on iHeartRadio | Listen to Miley Cyrus on iHeartRadio

(TMZ) - Miley Cyrus is God's gift to twerking ... at least according to the Ying Yang Twins who wrote an entire song about her booty-shaking greatness - and TMZ has the track. 

Kaine and D-Roc tell TMZ, they were inspired to make a tune in Miley's honor after learning she was a fan via Twitter - and due to her transition from Disney princess to a derriere-popping powerhouse. 

They tell TMZ, "Our fans have been starving for some authentic twerk music. Seeing that Miley Cyrus wants to show the world she is grown by twerking, we decided to give her a little help."

Now, heeeeere's Miley (and her butt):