Saying goodbye was hard for these seven bands that reunited after announcing a grand farewell tour for their fans. KISSGetty Images Getty Images loading...Year of farewell tour: 2000Year reunited: 2002Length: two yearsWhat happened: For more than a year, KISS embarked on a 142-date "farewell" tour that was promoted to be the end of the band. Motley CrueGetty Images Getty Images loading...Year of farewell tour: 2014-15Year reunited: 2019Length: four yearsWhat happened: Motley Crue announced The Final Tour during a press conference in January 2014. Nine Inch NailsGetty Images Getty Images loading...Year of farewell tour: 2009Year reunited: 2013Length: four yearsWhat happened: What started as the NIN 2009 tour was later renamed the Wave Goodbye tour less than two months later. The farewell tour wrapped up with a show in Toronto on Dec. 17.