Emma Watson formed a band with her co-stars on ‘The Perks of Being a Wallflower’. The 22-year-old actress teamed up with her castmates - including Logan Lerman - to start a group called Octopus Jam and write some songs. She said: ‘’Throughout the movie we all made music together. Our band was called Octopus Jam. I sing and Logan Lerman is a classical composer, and he created a piece for me.”