Question: Which rock band debuted first, Placebo or Godsmack?

Context paragraphs:
Nephew discography: The Danish rock band Nephew has released five studio albums, three live albums, five EPs, one compilation album, one box set, and nineteen singles.  The band was formed in 1996 by Simon Kvamm, Kristian Riis, Jonas Juul Jeppesen, and Søren Arnholt.  In 1998, Jeppesen, who was until then the bassist in the band, left the band and was replaced by the current bassist Kasper Toustrup.  That year, they proceeded to release two demo albums, "Tunes" and "Things to Do"; the demo "Downtown Europe" was released in 1999.  In 2000, the band debuted with "Swimming Time", on the small label Martian Records.  The album was received well by both critics and fans, but despite the band's success, the members got bored and decided to take a break.  During their 2001 farewell concert in Germany, the band rediscovered their passion for music and decided to stay together.  After being signed to Copenhagen Records, the band released their second studio album "USADSB" in 2004, which was very well received and is seen as their "breakthrough" album.  It gained double platinum status in Denmark, and aside from there has been released in Japan, Germany, and Norway.  Later in 2004, the "En Wannabe Darth Wader" single release came to be, which contains both the Danish and English versions of Nephew's song "En Wannabe Darth Vader".

Placebo (band): Placebo are an alternative rock band, formed in London, England in 1994 by singer-guitarist Brian Molko and guitarist-bassist Stefan Olsdal.  The band were soon joined by drummer Robert Schultzberg, who left in 1996 due to conflicts with Molko and was replaced the same year by Steve Hewitt.

No Surprise (Daughtry song): "No Surprise" is a song recorded by American rock band Daughtry for their second studio album, "Leave This Town" (2009).  It was released May 6, 2009 as the album's lead single, and the band debuted the song on "American Idol" that night.  Chris Daughtry wrote the song with Chad Kroeger, Joey Moi, Eric Dill, and Rune Westberg, while Howard Benson handled the production.

Hollow (Alice in Chains song): "Hollow" is the first single by American rock band Alice in Chains from their fifth studio album, "The Devil Put Dinosaurs Here", released in May 28, 2013.  On December 18, 2012, the band debuted the song on YouTube with a fan-made lyric video.  The lyric video contains static images submitted by fans via Instagram.  The song was made available for digital download on January 8, 2013. " "Hollow"" reached No. 1 on Billboard's Mainstream Rock Tracks and stayed on the chart for 20 weeks.  It is played in a 6/4 time signature during the verses, and in a standard 4/4 signature during the choruses.

Heaven Upside Down Tour: The Heaven Upside Down Tour is the fifteenth concert tour by American rock band Marilyn Manson, in support of their tenth studio album, "Heaven Upside Down", which is due for release in 2017.  The band debuted several new songs during the European leg of the tour, including "We Know Where You Fucking Live", "Say10", an instrumental composition titled "1°", and "Revelation #12".

Anthems (Pure Love album): Anthems is the debut album by British-American rock band Pure Love, released February 4, 2013.  The group formed in 2011 after the departure of lead singer Frank Carter from the hardcore punk band Gallows, after which he began sharing song ideas with Jim Carroll of The Hope Conspiracy and The Suicide File; the two had met when Gallows supported The Hope Conspiracy in 2006.  The group signed to Vertigo Records in February 2012 and began working with producer Gil Norton, playing a number of new songs in their debut performance at the NME Awards that February.  Prior to "Anthem"<nowiki>'</nowiki>s release, the band debuted several songs online as music videos and downloads.  The album was initially scheduled for release in October 2012 but was delayed to February 2013.

Day6: Day6 (, stylized as DAY6) is a South Korean rock band formed by JYP Entertainment.  The band's current line-up consists of five members: Jae, Sungjin, Young K, Wonpil, and Dowoon.  The band debuted with the release of their first EP, "The Day" on September 7, 2015.

The Fully Down: The Fully Down Canadian rock band that was formed in Ottawa in 1999, with the recording lineup coming together in 2003.  The band debuted in June 2004 on Pop Culture Records with "No Fate...But What We Make for Ourselves" and they went on three weeks Warped Tour 2004 to support it.  Warped Tour gave them their first taste of U.S. exposure, which accelerated their popularity in North America.

Gari (band): Gari is a Japanese electro rock band, formed in 1997 in Tokyo.  The band debuted on the independent label Deadstocksandwich Records in 1999.  In 2005, the band moved to Victor Entertainment.  In France, Gari performed concerts at the Japan Expo anime convention in 2007 and 2009.

Godsmack: Godsmack is an American rock band from Lawrence, Massachusetts, formed in 1995.  The band is composed of founder, frontman and songwriter Sully Erna, guitarist Tony Rombola, bassist Robbie Merrill, and drummer Shannon Larkin.  Since its formation, Godsmack has released six studio albums, one EP ("The Other Side"), four DVDs, one compilation album ("Good Times, Bad Times... Ten Years of Godsmack"), and one live album ("Live and Inspired").

Supporting paragraphs: Placebo (band) Godsmack
Answer: Placebo