Elton John is worried about Lady Gaa's health. The "Rocket Man" singer, 65, said he is concerned about the 26-year-old singer and her tiny frame.

"I look at Gaga and I think, 'How does she do it?'" he told The Guardian.

He also admitted that her parents are anxious about whether she is taking correct care of herself while traveling the world: "I talk to her mum and dad about it. They worry."

The music legend explained that the star - who is godmother to he and civil partner David Furnish's son Zachary - is especially on their minds because she works extremely hard: "She is frail, and she doesn't eat when she should, and she's a girl, and it's tougher for a girl. She works really hard. She will be in Denmark one night and Saudi Arabia the next. I know how tiny she is and I do worry about her, yes."