"Let 'Em In" is a song by Wings from their 1976 album Wings at the Speed of Sound. It was written and sung by Paul McCartney and reached the top 3 in both the United States and the United Kingdom: It was a #2 hit in the UK, and in the US it was a #3 pop hit and #1 easy listening hit. In Canada, the song was #3 for three weeks on the pop chart and #1 for three weeks on the MOR chart of RPM Magazine. The single was certified Gold by the Recording Industry Association of America for sales of over one million copies. It can also be found on McCartney's 1987 compilation album, All the Best!.

The lyrics include references to some of McCartney's family and friends: sister Suzy, supposedly a reference to Linda, who was "Suzy" in Suzy and the Red Stripes, brother John, Linda's brother John Eastman, Phil and Don, the Everly Brothers, brother Michael, McCartney's brother also known as Mike McGear, and Auntie Gin, McCartney's aunt. In the second verse, "brother Michael" is replaced by "Uncle Ernie" Keith Moon, who played the role of Uncle Ernie in the movie of The Who's Tommy and in the third, "Auntie Gin" is replaced by "Uncle Ian".^{[citation needed]}

Sir James Paul McCartney, MBE, Hon RAM, FRCM (born 18 June 1942) is an English musician, singer-songwriter and composer. Formerly of the Beatles (1960–1970) and Wings (1971–1981), he has been described by Guinness World Records as "The Most Successful Composer and Recording Artist of All Time", with 60 gold discs and sales of over 100 million albums and 100 million singles. With John Lennon, George Harrison, and Ringo Starr, he gained worldwide fame as a member of the Beatles, and with Lennon formed one of the most celebrated songwriting partnerships of the 20th century. After leaving the Beatles, he began a solo career and later formed the band Wings with his first wife, Linda Eastman, and singer-songwriter Denny Laine.

According to the BBC, his Beatles song "Yesterday" has been covered by over 2,200 artists—more than any other song. Wings' 1977 release, "Mull of Kintyre", became one of the best-selling singles ever in the UK, and he is "the most successful songwriter" in UK chart history, according to Guinness. As a songwriter or co-writer, he is included on thirty-one number one titles on the Billboard Hot 100, and as of 2012 he has sold over 15.5 million RIAA certified units in the United States.

Billy Paul (born Paul Williams; December 1, 1934) is a Grammy Award winning American soul singer, most known for his 1972 number-one single, "Me and Mrs. Jones" as well as the 1973 album and single "War of the Gods" which blends his more conventional pop, soul and funk styles with electronic and psychedelic influences. He is usually identified by his diverse vocal style which ranges from mellow and soulful to low and raspy.

Born and raised in North Philadelphia, Pennsylvania, Paul began his singing career when he was twelve, appearing on local radio shows. Listening at home to his family's collection of 78s, Paul began developing a vocal style that would eventually incorporate traces of jazz, R&B and pop.

Paul attended Temple University, West Philadelphia Music School, and Granoff School of Music, for formal vocal training. Switching from rock music to soul to pop ballads, he soon became known through his performances on the underground musical circuit in Philadelphia. Paul's popularity grew and led to appearances in clubs and at college campuses nationally. This led to further opportunities, appearing in concert with Charlie Parker, Dinah Washington, Nina Simone, Miles Davis, The Impressions, Sammy Davis, Jr. and Roberta Flack.

Talib Kweli Greene (October 3, 1975), better known as Talib Kweli, is an American rapper. Kweli hails from Brooklyn, New York. His first name in Arabic means "student" or "seeker" (طالب); his middle name in Swahili means "true". Kweli first gained recognition through Black Star, a collaboration with fellow MC Mos Def.

Born in Brooklyn, New York, Kweli grew up in a highly educated household in Park Slope. His mother, Brenda Greene, is an English professor at Medgar Evers College of the City University of New York and his father an administrator at Adelphi University. His younger brother, Jamal Greene, is a professor of Constitutional Law at Columbia Law School, and former clerk to Justice John Paul Stevens on the Supreme Court. As a youth, he was drawn to Afrocentric rappers, such as De La Soul and other members of the Native Tongues Posse whom he had met in high school. Talib Kweli was a student at Cheshire Academy, a boarding school in Connecticut. He was also a student at Brooklyn Technical High School, before being academically dismissed. He later studied experimental theater at New York University.

Antoine McColister, (born May 11, 1988), better known by his stage name Ace Hood, is an American rapper. Originating from Broward County, Florida, he is signed to DJ Khaled's label We the Best Music Group and Cash Money Records. he is formerly signed to Def Jam Recordings. His song "Top of the World", from his debut studio album Gutta, was also featured in the basketball simulation game, NBA 2K10.

In 2007, he met DJ Khaled outside the offices of WEDR 99 Jamz, a South Florida radio station that mainly plays hip hop and contemporary R&B music. After Ace gave him an autobiography and demo tape, Khaled asked Ace to rap over the instrumental of "I'm So Hood" and later signed Hood to his label, We the Best. Ace was named with several others to the Freshmen of 09 by XXL magazine.

His first album, Gutta, was released in 2008. Singles included "Cash Flow" featuring T-Pain and Rick Ross, and "Ride" featuring Trey Songz. Hood also released mixtapes called Ace Won't Fold and All Bets On Ace. He made a guest performance among several rappers on DJ Khaled's single "Out Here Grindin'", also featuring Akon, Rick Ross, Young Jeezy, Lil Boosie, Trick Daddy and Plies, which peaked at #38 on the Billboard Hot 100, becoming Ace Hood's biggest hit. It is from Khaled's third studio album We Global, and was eventually certified gold by the RIAA. Ace Hood appeared on Wildstyle Radio with Rome and Hoss on WUAG 103.1FM in Greensboro, North Carolina, on September 7, 2008, to promote his album, Gutta, along with DJ Khaled. The album debuted at #36 on the Billboard 200, selling 25,000 copies its first week.