Question: Who is the new lead singer of foreigner?

Disambiguated questions and answers:
context: Jones, the founder and only remaining original member of Foreigner, decided to take some time off before looking to form a new lineup in 2004. On July 25, 2004 in Santa Barbara, California at Fess Parker's DoubleTree Resort, Jones appeared at a benefit show for muscular dystrophy dubbed "Mick Jones & Friends" that included: Jeff Jacobs, Thom Gimbel, former Dokken bass player Jeff Pilson, future Black Country Communion drummer Jason Bonham (son of Led Zeppelin drummer John Bonham and leader of Bonham) and Bonham singer Chas West. West was front man for that show only. Inspired by the event and further encouraged by Jason Bonham, Jones continued the search for a new frontman. He would eventually find former Hurricane singer Kelly Hansen, who had sent the band an audition tape and was invited aboard in March 2005, making his debut with the group on March 11 at Boulder Station near Las Vegas.
question: Who is the new lead singer of foreigner that joined in 2005?
short_answers: Kelly Hansen
wikipage: Foreigner (band)
context: Jones, the founder and only remaining original member of Foreigner, decided to take some time off before looking to form a new lineup in 2004. On July 25, 2004 in Santa Barbara, California at Fess Parker's DoubleTree Resort, Jones appeared at a benefit show for muscular dystrophy dubbed "Mick Jones & Friends" that included: Jeff Jacobs, Thom Gimbel, former Dokken bass player Jeff Pilson, future Black Country Communion drummer Jason Bonham (son of Led Zeppelin drummer John Bonham and leader of Bonham) and Bonham singer Chas West. West was front man for that show only. Inspired by the event and further encouraged by Jason Bonham, Jones continued the search for a new frontman. He would eventually find former Hurricane singer Kelly Hansen, who had sent the band an audition tape and was invited aboard in March 2005, making his debut with the group on March 11 at Boulder Station near Las Vegas.
question: Who is the new lead singer of foreigner in 2004?
short_answers: Chas West
wikipage: Foreigner (band)
context: Jones got together with New York keyboardist Al Greenwood (who had just played with former Flash members Colin Carter and Mike Hough in a group called Storm), drummer Stan Williams and Louisiana bassist Jay Davis (later with Rod Stewart) and began jamming. Another friend, Stories singer Ian Lloyd, was brought in to sing but Jones decided the chemistry was not quite right and retained only Greenwood as he renewed his search for players. During a session for Ian Lloyd's album, Jones met up with transplanted Englishman and ex-King Crimson member Ian McDonald and another session for Ian Hunter unearthed another fellow Brit in drummer Dennis Elliott. But after auditioning about forty or fifty singers, the right vocalist was becoming harder to come by until Jones dragged out an old Black Sheep album given to him backstage at a Spooky Tooth concert a few years prior by that group's lead singer, Lou Gramm. Jones put in a call to Gramm, who was back in his hometown of Rochester, New York after Black Sheep's break-up, and sent him a plane ticket to New York City. Gramm proved to be the missing piece of the puzzle and Brooklyn, New York bassist Ed Gagliardi completed the new sextet.
question: Who is the new lead singer of foreigner in 1992?
short_answers: Lou Gramm
wikipage: Foreigner (band)

Long-form answers:
knowledge: content: Lou Gramm (born Louis Andrew Grammatico; May 2, 1950) is an American rock singer-songwriter, best known for being the lead singer of the rock band Foreigner from 1977 to 1990 and 1992 to 2002 during which time the band had numerous Top 5 albums and singles.
wikipage: Lou Gramm
content: Jones, the founder and only remaining original member of Foreigner, decided to take some time off before looking to form a new lineup in 2004. On July 25, 2004, in Santa Barbara, California, at Fess Parker's DoubleTree Resort, Jones appeared at a benefit show for muscular dystrophy dubbed "Mick Jones & Friends" that included: Jeff Jacobs, Thom Gimbel, former Dokken bass player Jeff Pilson, future Black Country Communion drummer Jason Bonham (son of Led Zeppelin drummer John Bonham and leader of Bonham) and Bonham singer Chas West. West was front man for that show only. 
wikipage: Foreigner (band)
content: There is a list that shows Current Band Members: Kelly Hansen – lead vocals, percussion (2005–present)
wikipage: Foreigner (band)
long_answer: Foreigner has had different lead singers over the years. Lou Gramm was the lead singer from 1977 to 1990 and 1992 to 2002. Chas West was front man for the band for one show only at a benefit for muscular dystrophy dubbed "Mick Jones & Friends" in 2004. In 2005, Kelly Hansen took over as lead singer and is still in that role today.