What may be sound like
noise to some people is 61. .
great music
to others. Rock and roll is that kind music. 62. .
You either
love it and hate it. Rock and roll is not always 63. .
played by a band. Performers of this
music is often 64. .
called a
"group". There are such many rock
65. .
groups that
each one has to do something specially to 66. .
become
famous. They try look and sound different
67. .
from all the
others groups. Rock groups are so popular 68.
.
that they do
not give concerts in small theaters but in 69.
.
parks or
stadiums that thousands of fans can attend at the 70.
.
same time.