Question: In what year was the American R&B singer who did the song "Burn" born?

Context paragraphs:
I'm Tryna: "I'm Tryna" is a song from American R&B singer Omarion.  It was released on April 6, 2005 as the third and final single off his debut album "O".  It was produced by production team The Underdogs and written by R&B singer-songwriter J. Valentine.  It also featured instrumentals by fellow American R&B singer Tank.  A music video for the single, directed by frequent collaborator Chris Stokes, was made and featured Omarion looking back on his relationship with his ex-girlfriend (played by Danielle Polanco).

Burn (Usher song): "Burn" is a song by American R&B singer Usher, which he wrote with American songwriters Jermaine Dupri, Bryan-Michael Cox.  The song was produced by Dupri and Cox for Usher's fourth studio album, "Confessions" (2004).  "Burn" is about breakup in a relationship, and the public referred to it as an allusion to Usher's personal struggles.  Originally planned as the album's lead single, "Burn" was pushed back after favorable responses for the song "Yeah! " "Burn" was released as the second single from the album on March 21, 2004.

Don't Think They Know: "Don't Think They Know" is a song by American R&B recording artist Chris Brown.  It was released on June 17, 2013, as the second official single from his sixth studio album "X".  The song, produced by Mel & Mus, features a guest appearance from deceased American R&B singer Aaliyah.  The song contains an interpolation from the Tim & Bob produced single "They Don't Know" by Jon B.  The song has since peaked at number 81 on the US "Billboard" Hot 100.

Nothing in This World (song): "Nothing in This World" is the second single by American R&B singer Keke Wyatt featuring American R&B singer Avant released as the second single taken from her debut album Soul Sista (2002).  The song was released on December 4, 2001 through MCA Records.  The song was written and produced by Steve 'Stone' Huff.

In the Air (Chipmunk song): "In the Air" is a single by British pop rapper Chipmunk, released as the second single from his second studio album "Transition" (2011).  The song features American R&B singer Keri Hilson, and was released on 13 March 2011.  "In the Air" follows up to the rapper's hit single "Champion", featuring American R&B singer Chris Brown, which peaked at #2 in the United Kingdom.

Usher (musician): Usher Raymond IV (born October 14, 1978) is an American singer, songwriter, dancer, and actor.  He was born in Dallas, Texas, but raised in Chattanooga, Tennessee until moving to Atlanta, Georgia.  At the age of 12, his mother put him in local singing competitions, before catching the attention of a music A&R from LaFace Records.  In 1994, he released his self-titled debut album, "Usher".  He rose to fame in the late 1990s with the release of his sophomore album "My Way" (1997), which spawned his first U.S. "Billboard" Hot 100 number-one single, "Nice & Slow", amongst top-two singles "You Make Me Wanna..." and "My Way". " 8701" (2001) produced the number-one singles "U Remind Me" and "U Got It Bad", and top-three single "U Don't Have to Call".  It sold 8 million copies worldwide and won his first two Grammy Awards as Best Male R&B Vocal Performance in 2002 and 2003.

Honey Love (R. Kelly song): "Honey Love" a song by American R&B singer R. Kelly and American R&B group Public Announcement.  It was released as the second single from Kelly's debut studio album "Born into the 90's" (1992).  It became Kelly's first number-one on the US R&B chart where it peaked for two weeks; also it barely made the Top 40 pop chart portion, peaking at number 39 on the "Billboard" Hot 100.

That Girl (Stevie Wonder song): "That Girl" is a song by American R&B singer and songwriter Stevie Wonder.  The song was the leading single from Wonder's album-era greatest-hits compilation, "Stevie Wonder's Original Musiquarium I", as one of four newer songs from the collection.  The song spent nine weeks at number one on the "Billboard" R&B singles chart and reached number four on the "Billboard" Hot 100.  The song would later be sampled by rapper 2Pac on his song, "So Many Tears" and covered by R&B singer Joe.  The song was sampled by Queen Latifah on her album "Order in the Court" on the non-U.S. track "Let Her Live".  A cover version appears on UK band Hue and Cry's 1992 album "Truth & Love".  MJG, one half of the hip-hop duo 8Ball & MJG also sampled the song of the same name on his 1997 solo debut "No More Glory".

Keke Wyatt: Ke'Tara Shavon "Keke" Wyatt (born March 10, 1982) is an American R&B singer.  After performing in a number of girl bands and working as a songwriter during her teenage years, in 2001 she garnered national attention after her successful collaboration with fellow R&B singer Avant, In 2002, her rendition of "Nothing in This World" led to a nomination for the Best New R&B/Soul/Rap Artist award at the Soul Train Lady of Soul Awards.  After a number of charting collaborations and solo releases, in 2012 she starred as a cast member in TV One's "", which featured the lives of five 1990s chart-topping R&B singers.  She was featured in all 3 seasons of the show.  She also performed with the group at events such as Essence Music Festival.

You &amp; I (Avant song): "You & I" is the lead single by American R&B singer Avant featuring American R&B singer Keke Wyatt taken from the seventh studio album Face the Music (2013).  The song was released in August 2012 through MO-B Entertainment.  The song was written by Kriss "Kajun" Johnson, Myron Avant and Andre Henry.  The song marks Avant and Keke's fifth collaboration "My First Love" (2000), "Nothing in This World", "I Can't Wait" (2001) and (2004).

Supporting paragraphs: Burn (Usher song) Usher (musician)
Answer: 1978