Vanilla Ice says that “Shell Shocked,” a song from the forthcoming Teenage Mutant Ninja Turtles movie featuring Juicy J, Wiz Khalifa and Ty Dolla $ign, is not up to par.

“With respect to all of the artists, the song doesn’t really do it for me,” Vanilla Ice says during an interview with GQ. “It feels a little artificial. What I mean by that is that it sounds like a bunch of executives in the corporate world put it together. It really does not fit the theme of the Ninja Turtles legend. I think you have to understand, and be a true Ninja, to possess the Magic to really pull off the secret sound.”

In 1991, Vanilla Ice performed “Ninja Rap” for Teenage Mutant Ninja Turtles II: The Secret of the Ooze. He also appeared in the film as himself.

Teenage Mutant Ninja Turtles is slated to arrive in theaters Friday (August 8).

Listen to “Shell Shocked” on HipHopDX here.

Last year, Vanilla Ice, whose biggest hit was 1990’s “Ice Ice Baby,” said that he changed the way Rap music was made.

“Sampling barriers, I broke down,” Vanilla Ice said at the time. “They made a spectacle out of it and it made it okay for Puff Daddy and everybody else to go make music. They figured it out. There was nobody before me that I could use as a guideline. [I] took rap mainstream. I had the first Rap song that had ever been No. 1 on the Pop charts. The most-sold Rap record in the history of the world, and that’s extreme. 160 million. The fastest-selling [Hip Hop album] of all time, and it still stands today. I don’t think it will ever be broken at this point.”

RELATED: Vanilla Ice Says He Broke Barriers In Hip Hop