question: American pop rock band Fun Was formed by this Former lead singer of the The Format who also started performing as a solo musician in this year?
answer: 2015
context: Title: Fun discography
  Passage: The discography of American indie pop band Fun consists of two studio albums, seven extended plays, 11 singles and seven music videos. Following the split of his previous band The Format, lead singer Nate Ruess formed Fun in 2008 with musicians Andrew Dost and Jack Antonoff, both of whom had previously toured with The Format.  Fun began recording sessions for their debut album in September 2008 and embarked on a North American tour the following month.  In May 2009, they issued their debut single, "At Least I'm Not as Sad (As I Used to Be)". " Aim and Ignite", the band's first full-length album, was released by Nettwerk Records on August 25, 2009 and peaked at number 71 on the United States "Billboard" 200 chart.  The album produced an additional two singles, "All the Pretty Girls" and "Walking the Dog", which were then followed by the release of the single "C'mon", a collaboration with American alternative rock band Panic!  at the Disco.
  Title: Nate Ruess
  Passage: Nathaniel Joseph Ruess (born February 26, 1982) is an American singer and songwriter.  He is the lead singer of the indie pop band Fun. , and previously of The Format.  As of 2015, he also performs as a solo musician.
  Title: Jack Antonoff
  Passage: Jack Michael Antonoff (born March 31, 1984) is an American musician, singer, songwriter and record producer.  He is best known as the lead singer and songwriter of Bleachers, and lead guitarist of the indie rock band Fun.  He was previously the lead singer-songwriter of the band Steel Train.  Antonoff has been nominated a Golden Globe Awards and has won three Grammy Awards.  He also started his own music festival, "Shadow of The City", which takes place annually in New Jersey.
  Title: The Sugarcubes
  Passage: The Sugarcubes (Icelandic: Sykurmolarnir) were an Icelandic alternative rock band from Reykjavík formed in 1986 and disbanded in 1992.  For most of their career, the band consisted of Björk (vocals, keyboards), Einar Örn Benediktsson (vocals, trumpet), Þór Eldon (guitar), Bragi Ólafsson (bass), Margrét "Magga" Örnólfsdóttir (keyboards) and Sigtryggur Baldursson (drums).  Lead singer Björk would later become an internationally successful solo musician and the best selling Icelandic musician of all time.
  Title: A Coloring Storybook and Long-Playing Record
  Passage: A Coloring Storybook and Long-Playing Record is the first and only EP by American pop punk band Cinematic Sunrise, a side project of Chiodos' Bradley Bell and Craig Owens.  The pair's pop rock project is strictly about having a good time and making music that is innocent and fun to play.  "Basically, the whole idea - everything about Cinematic Sunrise - is just happy and fun.  And there's nothing more fun than coloring," explains vocalist Craig Owens about the decision to include a coloring book with their aptly titled debut EP A Coloring Storybook and Long Playing Record.  It was originally released with four colored pencils intended for use in a book that includes drawings of animals with caricatures of the band members hidden somewhere in the environment.
  Title: Michael Tait
  Passage: Michael DeWayne Tait (born May 18, 1966) is a contemporary Christian music artist.  Michael Tait met Toby McKeehan in 1984 when he was in high school.  Both Toby and Michael met Kevin Max while attending Liberty University in the late 1980s, and together they formed four-time Grammy winning band DC Talk, with whom Michael Tait has released five acclaimed studio albums.  Tait is the current lead singer of Newsboys, and one third of Christian rock group DC Talk (though the group has been on hiatus since 2000).  Tait also has had success in his solo career, founding a band called Tait in 1997.  He toured as a solo act until 2007.  He became lead singer of the Christian pop rock band Newsboys in 2009, and though Peter Furler was the lead vocalist on the album "In the Hands of God", Tait provided supporting vocals on the project.  Aside from singing, Tait is also a self-taught guitar player.  Tait also has a sister Lynda Randle, who is a Southern Gospel singer.
  Title: Julie Christmas
  Passage: Julie Christmas (born 25 December, 1975) is an American musician from Brooklyn, New York.  Christmas is her legal middle name, named so after the fact that she was born on Christmas day.  She is the former lead singer of defunct Brooklyn-based noise rock band Made Out of Babies and the former lead singer of defunct post-metal supergroup Battle of Mice.  In 2010, she released a critically acclaimed solo album titled "The Bad Wife", and in 2016, she became a featured member on the Swedish post-metal band Cult of Luna's album "Mariner".
  Title: Joe Matera
  Passage: Joe Matera is an Australian rock guitarist, solo instrumental artist and rock journalist.  Matera is well known to have been the former lead guitarist of Australian famous pop rock band Geisha between 2007 and 2010.  Before joining Geisha, Matera was the lead guitarist of classic rock band Double Vision, from 2003 to 2008.  He's currently working as a solo artist, releasing solo instrumental albums and contributing guitar on various recordings around the world.
  Title: Andrew Heermans
  Passage: Andrew Heermans (born September 21, 1953 in Mineola, New York), is an American musician.  His three brothers and one sister were raised by their parents in Woodstock, New York.  He started playing guitar during those years and began performing with bands on a regular basis upon a family move to Boulder, Colorado in 1969.  After a brief stint at the University of Colorado, Mr. Heermans returned to regular performing in soul and rock bands and began to record things.  With the birth of his son Mr. Heermans and his wife moved to a small house in the country near Hotchkiss, Colorado, where he continued to play, but with country musicians.  Upon his return to NYC in 1979, he began playing with various bands and recording in studios in Manhattan.  HIs band FUN featuring Sean Doherty, Carlos Alomar, and Aaron Rubin achieved a certain notoriety in NYC and other cities around the world.  Beside his work with FUN and other musical incarnations, he continues working as a mastering engineer and producer of musical recordings.
  Title: Fun (band)
  Passage: Fun (stylized as fun.)  is an American pop rock band based in New York City.  The band was formed by Nate Ruess (former lead singer of The Format), with Andrew Dost (of Anathallo), and Jack Antonoff (of Steel Train and Bleachers).  Fun has released two albums: "Aim and Ignite" in August 2009 and "Some Nights" in February 2012.
citations: Nate Ruess Fun (band)