Stones lead singer Mick Jagger said during a recent movie premiere in Berlin that he and his fellow band members experimented with drugs during a time when their health effects were virtually unknown, The Sunday Times of London reported.
"When we were experimenting with drugs, little was known about the effects," Jagger said. "In our time, there were no rehab centers. Anyway, I did not know about them."
"She should get her act together," the 64-year-old rocker said.
Jagger had previously voiced a similar concern for the talented young singer, suggesting her reported drug and alcohol use could have deadly consequences.
"I'm worried she might die if she goes down the road that she has taken," Jagger said of the "Addicted" star.