Question: Who was born first Brian Connolly or Kai Hansen?

Context paragraphs:
Helloween: Helloween is a German power metal band founded in 1984 in Hamburg, Northern Germany by members of bands Iron Fist and Gentry.  Its first line-up consisted of singer and guitarist Kai Hansen, bass guitarist Markus Grosskopf, guitarist Michael Weikath, and drummer Ingo Schwichtenberg.  After the release of a self-titled EP and their debut album "Walls of Jericho" in 1985, it expanded into a quintet with the addition of singer Michael Kiske, Hansen choosing to focus on guitar instead.  Under this line-up, they released the "Keeper of the Seven Keys" albums (1987 and 1988), which established Helloween as a notable heavy metal band and led to the creation of the power metal subgenre.  However, Hansen left the band quickly after the release of "Part II" and was replaced by Roland Grapow.  He then created the band Gamma Ray.

Land of the Free (Gamma Ray album): Land of the Free is the fourth studio album by German power metal band Gamma Ray, released in 1995.  Continuing a trend that would conclude with the band's fifth studio release, the lineup for the album was different from the previous one, as "Land of the Free" was the first Gamma Ray album to be released since the departure of Ralf Scheepers, leaving Kai Hansen to take up lead vocals.  While not his first stint as a vocalist (Hansen had sung lead for Helloween until 1987 and had also recorded lead vocals on "Heal Me" from "Insanity and Genius"), it would be the first time he had performed lead vocals exclusively in 8 years.

Cut Above the Rest: Cut Above The Rest is the seventh album by Sweet, released on Polydor Records in October 1979.  It was their first album release following the departure of their original lead vocalist Brian Connolly.  Connolly had begun recording this album with the band at the TownHouse Studio in Shepherd's Bush, London, but his vocals were subsequently wiped and replaced by vocals from bass player Steve Priest and guitarist Andy Scott.  Original outtakes of "Play All Night" and "Stay With Me" (a.k.a. "Log One/That Girl") featuring Connolly's vocals have been recovered and were released on the rarities CD "Platinum Rare".

Gamma Ray (band): Gamma Ray is a power metal band from Hamburg, northern Germany, founded and fronted by Kai Hansen after his departure from the German power metal band Helloween.  Hansen is the current lead vocalist, guitarist as well as the chief songwriter of Gamma Ray.  The band is known as one of the most prominent bands of the German heavy metal scene.

Keeper of the Seven Keys: Part I: Keeper of the Seven Keys: Part I is the second studio album by German power metal band Helloween, released in 1987.  It marks the first appearance of vocalist Michael Kiske, and is considered the album that created the genre of European-style power metal.  Kai Hansen stepped away from doing vocal duties as he had difficulties singing and playing the guitar at the same time during the previous tour.  It was an album dominated by Hansen, due to an injury to co-guitarist Michael Weikath which prevented him from performing on much of the album. " Future World" was released as a single and a music video was made for "Halloween" but with 8 minutes omitted from the song.  The band originally planned to release "Keeper of the Seven Keys: Part I" and "" as a double album, but their record label refused, insisting that the albums be released separately.  Much later in 2010, both albums were released together with bonus tracks.

Mike Connolly (ice hockey): Michael Brian Connolly (born July 3, 1989) is a Canadian ice hockey forward.  He is currently playing with the Straubing Tigers of the Deutsche Eishockey Liga (DEL).  Connolly has previously played in the National Hockey League for the Colorado Avalanche.

Kids of the Century: "Kids of the Century" is a song and single by the German power metal band Helloween taken from the album "Pink Bubbles Go Ape".  This is the first Helloween single with Roland Grapow playing guitars, replacing Kai Hansen.  It is also the first Helloween recording with a song written by bassist Markus Grosskopf: "Shit and Lobster".

Brian Connolly: Brian Francis Connolly (5 October 1945 – 9 February 1997) was a Scottish musician and actor, best known as the lead singer of the British glam rock band The Sweet.

The Sweet: The Sweet (also known as Sweet) is a British glam rock band that rose to worldwide fame in the 1970s.  Their best known line-up consisted of lead vocalist Brian Connolly, bass player Steve Priest, guitarist Andy Scott, and drummer Mick Tucker.  The group was originally called Sweetshop.

Kai Hansen: Kai Michael Hansen (born 17 January 1963) is a heavy metal guitarist and vocalist.

Supporting paragraphs: Brian Connolly Kai Hansen
Answer: Brian Francis Connolly