2.  Rock music is a genre of music that entered the mainstream in the 1960s however it also has its roots from the 1940s and 1950s rock and roll, rhythm and blues, country music and also drew on folk music, jazz and classical music.  During the 1960s and early 1970s, rock music developed different subgenres. This was seen in the 60’s when it was blended with folk music to create folk rock, with blues to create blues-rock and with jazz, to create jazz-rock fusion. In the 1970s, rock incorporated influences from soul, funk, and Latin music. Rock developed a number of subgenres, such as soft rock, glam rock, heavy metal, hard rock, progressive rock, and punk rock.  In the 1980s included new wave, hardcore punk and alternative rock.  In the 1990s, rock subgenres included grunge, Britpop, indie rock, and nu metal.  Many rock groups consist of an electric guitarist, lead singer, bass guitarist, and a drummer, forming a quartet. Some groups omit one or more of these roles or utilize a lead singer who plays an instrument while singing, sometimes forming a trio or duo; others include additional musicians such as one or two rhythm guitarists or a keyboardist.  More recently the term rock has been used as a blanket term including forms such as pop music, soul music, and sometimes even hip hop.

3. Past Elvis Presley: Elvis Aaron Presley (January 8, 1935 – August 16, 1977) A cultural icon, he is widely known by the single name Elvis. He is often referred to as the King of Rock and Roll" or simply "the King". The Coasters:  a Los Angeles based rhythm and blues group, the group was formed in October 1954-1955. The original Coasters' members, were African-Americans Carl Gardner, Billy Guy, Bobby Nunn, Leon Hughes

4. Present Coldplay: are an English alternative rock band, formed in London in 1998. The group comprises Chris Martin (lead vocals, keyboards, guitar), Jonny Buckland (lead guitar), Guy Berryman (bass guitar), and Will Champion (drums, backing vocals, other instruments). Paramore: an American rock band that formed in Franklin, Tennessee in 2004. Members are Hayley Williams (lead vocals/keyboards), Josh Farro (lead guitar/backing vocals), Jeremy Davis (bass guitar), Zac Farro (drums), and Taylor York (rhythm guitar).

5.  Rock music is usually preferred by teenagers and older people, aging from 13 to 40 years of age.  However it could argued that teens like it the most as rock usually represents some type o rebellion which teens go through everyday. It is also a way for them to find their true identities.  Rock is a popular genre with mainstream appeal as there are many sub-genres meaning the genre is diverse enough for more than one type of fan to enjoy it. This is seen in Michael Jackson's rock hit; thriller when it sold over 110 million albums worldwide.