question: Who was co-lead vocalist in Linkin Park and also produced albums by Lupe Fiasco and the X-Ecutioners?
answer: Mike Shinoda
context: Title: Mike Shinoda
  Passage: Michael Kenji Shinoda ( , born February 11, 1977) is an American musician, songwriter, record producer and graphic designer.  He co-founded Linkin Park in 1996 and is the band's rhythm guitarist, primary songwriter, keyboardist, producer, and lead vocalist.  Shinoda later created a hip-hop-driven side project, Fort Minor, in 2004.  He served as a producer for tracks and albums by Lupe Fiasco, Styles of Beyond, and The X-Ecutioners.
  Title: It's Goin' Down (X-Ecutioners song)
  Passage: "It's Goin' Down" is a song by American turntablists The X-Ecutioners.  It features two members of American rock band Linkin Park: rapper Mike Shinoda and turntablist Joe Hahn.  It is often mistaken for a Linkin Park track due to their involvement.  It was released as the first and only single from The X-Ecutioners' second studio album "Built from Scratch", which was originally released in September 26, 2001.  The single was released in March 2002 in CD and vinyl format.
  Title: Shining Down
  Passage: "Shining Down" is a song by Lupe Fiasco.  It was intended to be the first single of "Everywhere", the first of three CDs of Lupe Fiasco's triple album, "Lupe Fiasco's LupE.N.D." , but because of its release being withheld, there was speculation circulating that it may be the first single of his third album, "Lasers".  The song, however, was only included in the iTunes deluxe version of the album and was considered a promotional single.  The song is produced by Soundtrakk and features Matthew Santos, in the same collaborative manner in which the lead single "Superstar" was composed for Lupe's critically acclaimed second album "Lupe Fiasco's The Cool".
  Title: Lupe Fiasco's The Cool
  Passage: Lupe Fiasco's The Cool (commonly referred as The Cool) is the second studio album by Chicago-native rapper Lupe Fiasco.  It was released on December 18, 2007, by 1st & 15th Entertainment and Atlantic Records.  Recording sessions took place during 2006 to 2007, with Lupe Fiasco himself, alongside Charles Patton (Chilly) serving as the records executive producers.  The concept album, "The Cool" was based upon the song and a title character from his debut album, "Food & Liquor" (2006).  The album features guest appearances from Gemini, Snoop Dogg and Matthew Santos, while the production was provided by Patrick Stump, Soundtrakk and Unkle, among others.
  Title: Believe Me (Fort Minor song)
  Passage: "Believe Me" is a song by American hip hop artist Fort Minor, the side project of rock band Linkin Park's co-lead vocalist Mike Shinoda.  It is the third US and first international single from Fort Minor's debut album, "The Rising Tied".  Two versions of the CD single were released, the first being released in November 15, 2005; and the second in November 22, 2005.  The track features hip hop group Styles of Beyond and Eric Bobo of Cypress Hill.
citations: Mike Shinoda Believe Me (Fort Minor song)