Singer's premature twins under monitoring at hospital

According to TMZ, they are "under the lights" due to the possibility of jaundice which is often caused by elevated bilirubin levels.

The procedure was carried out in a bid to "lower bilirubin in the blood to eliminate the jaundice", TMZ reports.

Though a saddening occurrence, the condition which is common among premature babies is considered not to be dangerous once proper treatment is given.

Jaundice is a medical term that describes the yellowing of the skin and the whitening of the eyes.

A source who spoke to TMZ disclosed that the babies were not carried to full-term.