"OK Fred" is a song and single by Jamaican singer-songwriter, John Holt.
 It was first released in 1971.
"Iron Lion Zion" is a song written and recorded in April 1973 or 1974 by Jamaican singer-songwriter Bob Marley.
 It was first released posthumously on 7 September 1992 on the "Songs of Freedom" box set, reaching number 5 in the UK Singles Chart.
 A remixed version was released as a single and later included in 1995 on "".
"Birthday" is a song written and recorded by Icelandic band The Sugarcubes for their 1988 debut album "Life's Too Good".
 It was their first international single and the first single released from the album.
 The Icelandic version, ""Ammæli"", was released on the Iceland-only single ""Einn Moli' Á Mann" ("One Cube Per Head")" the previous year and was included as the B-side on the international single.
Diana King (born 8 November 1970) is a Jamaican singer-songwriter who performs a mixture and fusion of reggae, reggae fusion and dancehall.
 She was born to an Indo-Jamaican mother and an Afro Jamaican father.
 She is best known for her hit 1995 single "Shy Guy" and her remake of "I Say a Little Prayer" which was featured on the soundtrack to "My Best Friend's Wedding".
"Ego" is a song recorded by American singer Beyoncé for the deluxe edition of her third studio album, "I Am... Sasha Fierce" (2008).
 The song was composed by Elvis Williams, Harold Lilly, and Beyoncé.
 "Ego" was officially remixed with additional vocals from hip hop artist, Kanye West.
 Initially planned to be released in January 2009 as the second urban single in the US along with the fourth US and third international single "Halo", the release of "Ego" was canceled and replaced by "Diva".
 "Ego" was later serviced as the third urban single, and fifth overall single in the US on May 19, 2009 alongside the sixth US and fourth international single "Sweet Dreams".
Samantha Gonsalves (born 10 October 1996), better known by her stage name Samantha J, is a Jamaican model and singer-songwriter signed to Columbia Records.
 She is known for her 2013 hit, "Tight Skirt", which has topped international charts.
 She released an international single in 2015 called "League of My Own" featuring Dej Loaf.
"Al Capone" is a song and single by Jamaican singer-songwriter Prince Buster.
 It was first released in 1964.
Deja Trimble (born April 8, 1991), better known by her stage name Dej Loaf (stylized as DeJ Loaf), is an American rapper, singer and songwriter from Detroit, Michigan.
 She began her music career in 2011, and released her debut single "Just Do It" in 2012.
 In October 2014, she released her second mixtape, "Sell Sole".
"One Love" is a song by American rapper Nas, released October 25, 1994 on Columbia Records.
 It was issued as the fifth and final radio single in promotion of his debut studio album "Illmatic" (1994).
 The song was produced by Q-Tip of A Tribe Called Quest, who also contributed vocals for the chorus line.
 According to Nas, the title of the song originates from Jamaican singer-songwriter and musician Bob Marley's song of the same name.
"What About Us" is a single released by English-Irish girl group The Saturdays.
 Their first international single, it is the lead single from their first American-only release EP, "Chasing the Saturdays" (2013).
 It also acts as the second single from their fourth studio album "Living for the Weekend" (2013).
 The single was first released in the United States and Canada on 18 December 2012 via digital download, before being released in the United Kingdom on 16 March 2013 via CD single and digital download.
 The single was written by Camille Purcell, Ollie Jacobs, Philip Jacobs.
 There are two different versions of the track which have been recorded and released: a solo version, which was released exclusively in the US and Canada, and a version featuring Jamaican rapper Sean Paul, which was released internationally.
 Music critics gave the song positive feedback, but questioned the heavily auto-tuned chorus and the move away from the group's traditional sound.

Question: In what year was the international single "League of My Own" released, which featured an American rapper and Jamaican singer-songwriter?
Answer: 2015