Penelope Cruz reveals she set hair on fire blowing out candles on birthday cake

The 37-year-old actress said she gets flustered celebrating because she doesn’t know how to act around people.

Appearing on The Tonight Show With Jay Leno, she said: ‘I always get nervous celebrating the birthday.

‘This year I had dinner with friends and family.

‘I get nervous when people sing ‘Happy Birthday’, I get nervous when I have to open the presents in front of them.

‘I get more nervous even than at the Oscars.’