Our group had decided to research into a different route of music festivals, instead of the telephone sim card idea because we needed to make money out of it and the initial idea wouldn't really make money.
Music festivals are oriented towards live music, which is hosted outdoors. For example, the UK host music festivals in places such as Glastonbury (the famous one), Leeds, Reading, Isle of Wright, the o2 Wireless, T4 on the Beach, to name a few.
They are also inclusive of other attraction such as food and merchandise.
The best free music festival is Basingstoke Live in which about 30,000 people attended in 2010.
The first Glastonbury Festivals were a series of events held during the summer in 1914 to 1926.