Jason Derulo's weird encounters

Jason Derulo once autographed a baby's forehead.

The 'Ridin' Solo' singer said the child's mother "begged" him leave his mark on her child and it was the strangest thing he ever had to do.

He said: "I reluctantly signed it after this woman just begged and begged me to do it."

The 21-year-old musician - who is supporting Lady Gaga on her 'Monster Ball' tour - is no stranger to weird goings-on however and said since he became a star it has given him some insight into the more eccentric side of life.

The 'Whatcha Say' hitmaker added: "Last New Year's Eve, I was at a party and there were lions.

"I also get free jewellery quite a bit. I got a really cool diamond watch, but I don't wear it much because it's too flashy. I'm more of a black diamond kind of guy."

However Jason works hard for his lifestyle, and admitted last year he hardly sleeps because he worries so much about the competition of the music industry.

He said:"My life is pretty exhausting. I don't sleep that much. When you're sleeping the competition is creeping."