Rock music is a genre of popular music that developed during and after the 1960s, particularly in the United Kingdom and the United States. It has its roots in 1940s and 1950s rock and roll, itself heavily influenced by rhythm and blues and country music. Rock music also drew strongly on a number of other genres such as blues and folk, and incorporated influences from jazz, classical and other musical sources.

Musically, rock has centered around the electric guitar, usually as part of a rock group with bass guitar and drums. Typically, rock is song-based music usually with a 4/4 time signature utilizing a verse-chorus form, but the genre has become extremely diverse and common musical characteristics are difficult to define. Like pop music, lyrics often stress romantic love but also address a wide variety of other themes that are frequently social or political in emphasis. The dominance of rock by white, male musicians has been seen as one of the key factors shaping the themes explored in rock music. Rock places a higher degree of emphasis on musicianship, live performance, and an ideology of authenticity than pop music.

Lauren Bennett (born 23 June 1989) is a British singer, dancer and model. She is best known for her involvement with girl group the Paradiso Girls and her work with Cee Lo Green and LMFAO. She is the new lead singer in the new line-up of the Pussycat Dolls.

Bennett was raised in Meopham, Kent and went to a song and dance school in Tunbridge Wells. She also auditioned for the third series of The X Factor in 2006 and made it to bootcamp, but was sent home.

Bennett was part of a girl group called Paradiso Girls. The group consisted of seven members at its formation in 2007, but by 2008 it had dropped to five. Each member comes from a different country: Chelsea Korka from the United States, Aria Crescendo from France, Kelly Beckett from Barbados, Shar Mae Amo from the Philippines and Lauren herself from the United Kingdom. The band was signed to Interscope Records. Their debut single "Patron Tequila" featuring Lil’ Jon and Eve was released on 12 May 2009 and reached 3 on the Hot Dance Club Play Chart and 82 in Canadian Hot 100. After their second single, "Who's My B***" was unsuccessful, the group was put on an indefinite hiatus in 2010.

Robert Clark "Bob" Seger (born May 6, 1945) is an American rock and roll singer-songwriter, guitarist and pianist.

As a locally successful Detroit-area artist, he performed and recorded as Bob Seger and the Last Heard and Bob Seger System throughout the 1960s. By the early 1970s, he had dropped the "System" from his recordings, and he continued to strive for broader success with other various bands. In 1973, he put together The Silver Bullet Band, an evolving group of Detroit-area musicians, with whom he became most successful. In 1976, he achieved a national breakout with the album Night Moves. On his studio albums, he also worked extensively with the Alabama-based Muscle Shoals Rhythm Section, which appeared on several of Seger's best-selling singles and albums.

A roots rocker with a classic raspy, shouting voice, Seger wrote and recorded songs that dealt with blue-collar themes and was an exemplar of heartland rock. Seger has recorded many hits, including "Night Moves", "Turn the Page", "We've Got Tonight", "Against the Wind", and "Like a Rock", and also co-wrote the Eagles' number-one hit "Heartache Tonight". His iconic recording of "Old Time Rock and Roll" was named one of the Songs of the Century in 2001.

Avril Ramona Lavigne (pronunciation: /ˈævrɨl ləˈviːn/; AV-ril lə-VEEN; born 27 September 1984) is a Canadian singer-songwriter. She was born in Belleville, Ontario, but spent most of her youth in the small town of Napanee. By the age of 15, she had appeared on stage with Shania Twain; by 16, she had signed a two-album recording contract with Arista Records worth more than $2 million. In 2002, when she was 17 years old, Lavigne broke onto the music scene with her debut album Let Go.

Let Go made Lavigne the youngest female soloist to reach No. 1 in the UK, and the album was certified four-times platinum by the Recording Industry Association of America. By 2009, over 16 million copies had been sold worldwide. Her breakthrough single, "Complicated", peaked at No. 1 in many countries around the world, as did the album Let Go. Her second album, Under My Skin, was released in 2004 and was her first album to peak at No. 1 on the U.S. Billboard 200, eventually selling more than 10 million copies worldwide. The Best Damn Thing, Lavigne’s third album, was released in 2007, becoming her third No. 1 album in the UK Albums Chart and featuring her first U.S. Billboard Hot 100 No. 1 single, "Girlfriend". Lavigne has scored six number-one singles worldwide, including "Complicated", "Sk8er Boi", "I'm with You", "My Happy Ending", "Nobody's Home", and "Girlfriend". With more than 30 million copies of her albums sold worldwide, Lavigne is one of the top-selling artists releasing albums in the U.S., with over 10.25 million copies certified by the RIAA. Her fourth studio album, Goodbye Lullaby, was released in March 2011. Goodbye Lullaby gave Lavigne her fourth top 10 album on the U.S. Billboard 200 and the UK Albums Chart and her third No. 1 album in both Japan and Australia. Three months after the release of Goodbye Lullaby, Lavigne began work on her fifth album, which will be released on Epic Records following her departure from RCA Records.

Henry Rollins (born 13 February 1961) is an American spoken word artist, writer, journalist, publisher, actor, comedian, radio DJ, activist and formerly singer-songwriter.

After performing for the short-lived Washington D.C.-based band State of Alert in 1980, Rollins fronted the California hardcore punk band Black Flag from August 1981 until mid-1986. Following the band's breakup, Rollins established the record label and publishing company 2.13.61 to release his spoken word albums, as well as forming the Rollins Band, which toured with a number of lineups from 1987 until 2003, and during 2006.

Since Black Flag disbanded, Rollins has hosted numerous radio shows, such as Harmony in My Head on Indie 103, and television shows such as The Henry Rollins Show, MTV's 120 Minutes, and Jackass. He had a recurring dramatic role in the second season of Sons of Anarchy and has also had roles in several films. Rollins has also campaigned for various political causes in the United States, including promoting LGBT rights, World Hunger Relief, and an end to war in particular, and tours overseas with the United Service Organizations to entertain American troops.