Lisa "Left Eye" Lopes unhappy with TLC reunion track

To celebrate the 20th anniversary of their hit song "Waterfalls," the remaining members of TLC are re-releasing the track.

But instead of leaving Lisa "Left Eye" Lopes on the track, T-Boz and Chili have replaced her famous rap with a vocal part by Japanese pop star Namie Amuro.

Lopes's sister, Raina Lopes, is not thrilled with the remake.

"I did not know about it until a fan posted it online," Raina Lopes said. "I mean it would have been nice if they would have given us a heads up before being surprised."

Raina Lopes said her mother, in particular, was upset, and that T-Boz and Chili should have left Left Eye's track in place to honor her memory.

Lopes said she would be alright with the track if it were only released in Japan.