user: Is the killers a band

assistant: The Killers are an American rock band formed in Las Vegas in 2001 by Brandon Flowers (lead vocals, keyboards, bass) and Dave Keuning (lead guitar, backing vocals). After going through a number of short-term bass players and drummers in their early days, both Mark Stoermer (bass, rhythm guitar, backing vocals) and Ronnie Vannucci Jr. (drums, percussion) joined the band in 2002. The band's name is derived from a logo on the bass drum of a fictitious band portrayed in the music video for the New Order song Crystal.

user: Name some famous songs by the Beatles

assistant: Some songs by the Beatles are Penny Lane, Yellow Submarine, While My Guitar Gently Weeps, Let It Be and Here Comes the Sun

user: What was the result and impact of the First Battle of Tannenberg?

assistant: The Teutonic Order was defeated in the First Battle of Tannenberg and the subsequent decline of the Teutonic Order led to Polish–Lithuanian union becoming the dominant regional force.