Here you are the presentation "Before they were famous", to practise the past form of the verb "to be".
Your homework for Monday is
Global Beginner:exercise 1 on page 115
Essential English Grammar, page 23, exercise 1. (Sólo he explicado la forma afirmativa).
And this is the song we tried (intentamos) to do in class. It was very difficult, I'm sorry. If you didn't come to school, you can give it a try (puedes intentarlo). This is the worksheet and the answer key (soluciones)