Question: What singer is the backstreet boy that worked on the show "boy band" the older brother of? 

Context paragraphs:
Masahiro Nakai: Masahiro Nakai (中居 正広 , Nakai Masahiro , born August 18, 1972) is a Japanese television host, actor, newscaster, radio personality.  He was the leader of the now defunct boy band SMAP, which had been the best-selling boy band in Asia.  While working as a member of a boy band, he worked extensively as a television presenter, hosting many of his own talk shows, variety shows, music shows, news programs, and several Olympic games as a sportscaster.  His conversational method and technique has been critically praised, establishing himself as one of the most well-respected, iconic hosts in the Japanese entertainment industry.  He is the host of six weekly television programs and one radio program.

Nick Carter (musician): Nickolas Gene "Nick" Carter (born January 28, 1980) is an American singer, songwriter, actor, and dancer.  He is best known as a member of the pop group the Backstreet Boys.  As of 2015, Carter has released three solo albums, "Now or Never", "I'm Taking Off" and "All American" during breaks between Backstreet Boys schedules, and a collaboration with Jordan Knight titled "Nick & Knight".  He has made occasional television appearances and starred in his own reality shows, "House of Carters" and "I (Heart) Nick Carter".  He gained fame in the mid 1990s and early 2000s as a teen idol.  He is also the older brother of singer Aaron Carter and the late Leslie Carter.

Boy Band (TV series): Boy Band is an American television music competition series that premiered on June 22, 2017 on ABC.  The 10-episode first season features young male vocalists competing to become a member of a new five-piece boy band.  The final five boys who form the boy band receive a recording contract with Hollywood Records and perform the band's debut single during the finale.  On August 24, 2017, it was announced on the live show that Brady Tutton, Chance Perez, Drew Ramos, Sergio Calderon, and Michael Conor were the new members of the boy band, In Real Life.  They performed for the very first time their first single, "Eyes Closed".

In a World Like This: In a World Like This is the eighth studio album (seventh in the United States) by the Backstreet Boys, released in 2013 through the band's own record label K-BAHN.  A follow-up to 2009's "This Is Us", it is the first album featuring all five original members since Kevin Richardson left the group in 2006 to focus on his family and pursue other interests.  Richardson rejoined the group in 2012.  It was also their first and only independent album since leaving their old label Jive Records in 2010.  The album debuted at number five on the US "Billboard" 200, making the Backstreet Boys the first act since Sade to have nine US top 10 albums, and the only boy band to do so.

Everybody (Backstreet's Back): "Everybody (Backstreet's Back)" is a song by American boy band Backstreet Boys.  It was released as the first single from their second international album "Backstreet's Back" in 1997, and the third single from their debut U.S. album on March 31, 1998.  The U.S. debut was originally released without the song, which references the band's return via their second international album.  However, once it was decided to release the single in the U.S., the album was re-released with "Everybody" included.

Bigger (Backstreet Boys song): "Bigger" is a song by American boy band Backstreet Boys.  It was released on November 29, 2009 as the second single from their seventh studio album, "This Is Us" (2009).  The song was co-written and produced by collaborator and producer Max Martin.  The band stated that the song was one of their best hits since "I Want It That Way", a song written and produced by Martin for the band in 1998.  This was the last standard Backstreet Boys single released before Kevin Richardson rejoined the group.

In Real Life (band): In Real Life is an American boy band composed of Brady Tutton, Chance Perez, Drew Ramos, Sergio Calderon, and Michael Conor, the final five vocalists from the American reality television music competition series "Boy Band."  The show premiered June 22, 2017 on ABC with hostess Rita Ora, and "architects" Backstreet Boys' Nick Carter, the Spice Girls' Emma Bunton and Timbaland.

Backstreet Boys (1996 album): Backstreet Boys is the self-titled international debut studio album by American boy band Backstreet Boys.  The album was released around Europe, Asia, Canada and in a few other markets.  It was a success, becoming one of the biggest debut albums ever and contains a number of the band's most memorable singles.  All of those singles were later released on the second self-titled debut in the United States in 1997, which compiled songs from this album, and the band's second international release, "Backstreet's Back".

House of Carters: House of Carters (previously known as The Carters) is an American documentary/reality show on the E! cable network, and MuchMusic in Canada, about the lives of Backstreet Boy Nick Carter and his four siblings reuniting in Los Angeles (while Carter was gearing up for the Backstreet Boys 6th studio album "Unbreakable") as they try to revive their careers as well as reconnect as a family.  The series premiered on October 2, 2006.  Eight episodes were ordered.  The show stars Nick, B.J., Aaron, Leslie and Angel Carter.

As Long as You Love Me (Backstreet Boys song): "As Long as You Love Me" is a song by American boy band Backstreet Boys.  It was released as the second single from their debut album in the United States and "Backstreet's Back" internationally.  It was released in September 1997 internationally and in October of the same year in the United States.  It is one of the bands' largest hits and considered one of their signature songs.

Supporting paragraphs: In Real Life (band) Nick Carter (musician)
Answer: Aaron Carter