From WENN.com

The Singin' in the Rain star, 80, was taken to Cedars-Sinai Medical Center after experiencing an ""adverse reaction"" to an unknown medication she was taking.

A representative for the movie veteran has assured fans Reynolds is already on the mend, but she has axed all her upcoming promotional appearances as a precaution, according to TMZ.com.

At the time WENN went to press, the screen legend was still recovering in hospital.