Elton John thinks Lady Gaga is overstretching herself

English rock singer Sir Elton John is worried about the health of pop sensation Lady Gaga, who is also the godmother of his son Zachary. The noted singer-songwriter feels that Born This Way singer is overstretching herself and the non-stop schedule of her Born This Way Ball world tour will take its toll on her health, reported Contactmusic. "I look at Gaga and I think, 'How does she do it?' I talk to her mum and dad about it. They worry, John said. "She is frail, and she doesn't eat when she should do, 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," he said.