The American Society for the Prevention of Cruelty to Animals (ASPCA) is a non-profit organization dedicated to preventing cruelty towards animals. Based in New York City since its inception in 1866, the organization's mission is "to provide effective means for the prevention of cruelty to animals throughout the United States."

Roberta Flack (born February 10, 1937) is an American singer, songwriter, and musician who is notable for jazz, soul, R&B, and folk music. Roberta Flack is best known for her Hot 100 #1 singles "The First Time Ever I Saw Your Face", "Killing Me Softly with His Song" and "Feel Like Makin' Love", as well as "Where Is the Love" and "The Closer I Get to You", two of her many duets with Donny Hathaway. "The First Time Ever I Saw Your Face" won the 1973 Grammy Record of the Year and "Killing Me Softly with His Song" won the same award at the Grammy Awards of 1974. She and U2 are the only artists to win the award in consecutive years.

Roberta Flack was born in Black Mountain, North Carolina and was raised in Arlington, Virginia. She first discovered the work of African American musical artists when she heard Mahalia Jackson and Sam Cooke sing in a predominantly African-American Baptist church.

During her early teens, Flack so excelled at classical piano that Howard University awarded her a full music scholarship. She entered Howard University at the age of 15, making her one of the youngest students ever to enroll there. She eventually changed her major from piano to voice, and became an assistant conductor of the university choir. Her direction of a production of Aida received a standing ovation from the Howard University faculty. Flack is a member of Delta Sigma Theta sorority and was made an honorary member of Tau Beta Sigma by the Eta Delta Chapter at Howard University for her outstanding work in promoting music education.

Sarah Ann McLachlan, OC, OBC (born January 28, 1968) is a Canadian musician, singer and songwriter. Known for her emotional ballads and mezzo-soprano vocal range, as of 2009, she has sold over 40 million albums worldwide. McLachlan's best-selling album to date is Surfacing, for which she won two Grammy Awards (out of four nominations) and four Juno Awards. In addition to her personal artistic efforts, she founded the Lilith Fair tour, which showcased female musicians. The Lilith Fair concert tours took place from 1997 to 1999, and resumed in the summer of 2010. Since 2006 she has also been known as a highly visible supporter of the ASPCA, as well as various other charities.

Sarah McLachlan was born on January 28, 1968, and adopted in Halifax, Nova Scotia, Canada. As a child, she took voice lessons, along with studies in classical piano and guitar. When she was 17 years old and still a student at Queen Elizabeth High School, she fronted a short-lived rock band called The October Game. One of the band's songs, "Grind", credited as a group composition, can be found on the independent Flamingo Records release Out of the Fog and the CD Out of the Fog Too. It has yet to be released elsewhere. Her high school yearbook predicted that she was "destined to become a famous rock star."

Willie Hugh Nelson (pronounced /wɪli nɛlsən /; born April 30, 1933) is an American country music singer-songwriter, as well as an author, poet, actor, and activist. The critical success of the album Shotgun Willie (1973), combined with the critical and commercial success of Red Headed Stranger (1975) and Stardust (1978), made Nelson one of the most recognized artists in country music. He was one of the main figures of outlaw country, a subgenre of country music that developed at the end of the 1960s as a reaction to the conservative restrictions of the Nashville sound. Nelson has acted in over 30 films, co-authored several books, and has been involved in activism for the use of biofuels and the legalization of marijuana.