The Eagles are an American rock band formed in Los Angeles in 1971. The founding members were Glenn Frey (guitars, vocals), Don Henley (drums, vocals), Bernie Leadon (guitars, vocals) and Randy Meisner (bass guitar, vocals). With five number-one singles, six Grammy Awards, five American Music Awards, and six number-one albums, the Eagles were one of the most successful musical acts of the 1970s. At the end of the 20th century, two of their albums, Their Greatest Hits (1971-1975) and Hotel California, were ranked among the 20 best-selling albums in the United States according to the Recording Industry Association of America.

An Eagles country tribute album, titled Common Thread: The Songs of the Eagles, was released in 1993, 13 years after the breakup. Travis Tritt insisted on having the Long Run-era Eagles in his video for "Take It Easy" and they agreed. Following years of public speculation, the band formally reunited the following year. The lineup comprised the five Long Run-era members--Frey, Henley, Walsh, Felder, and Schmit--supplemented by Scott Crago (drums), John Corey (keyboards, guitar, backing vocals), Timothy Drury (keyboards, guitar, backing vocals), and former Loggins and Messina sideman Al Garth (sax, violin) on stage.  "For the record, we never broke up, we just took a 14-year vacation," announced Frey at their first live performance in April 1994. The ensuing tour spawned a live album titled Hell Freezes Over (named for Henley's recurring statement that the group would get back together "when hell freezes over"), which debuted at number 1 on the Billboard album chart. It included four new studio songs, with "Get Over It" and "Love Will Keep Us Alive" both becoming Top 40 hits. The album proved as successful as the tour, selling six million copies in the U.S. The tour was interrupted in September 1994 because of Frey's serious recurrence of diverticulitis, but it resumed in 1995 and continued into 1996. In 1998, the Eagles were inducted into the Rock and Roll Hall of Fame. For the induction ceremony, all seven Eagles members (Frey, Henley, Felder, Walsh, Schmit, Leadon, and Meisner) played together for two songs, "Take It Easy" and "Hotel California." Several subsequent reunion tours followed (without Leadon or Meisner), notable for their record-setting ticket prices.  The Eagles performed at the Mandalay Bay Events Center in Las Vegas on December 28 and 29, 1999, followed by a concert at the Staples Center in Los Angeles on December 31. These concerts marked the last time Felder played with the band and the shows (including a planned video release) would later form a part of a lawsuit filed by Felder against his former band mates. The concert recordings were released on CD as part of the four-disc Selected Works: 1972-1999 box set in November 2000. Along with the concert, this set included the band's hit singles, album tracks and outtakes from The Long Run sessions. Selected Works received platinum certification from the Recording Industry Association of America (RIAA) in 2002. The group resumed touring in 2001, with a line-up consisting of Frey, Henley, Walsh, and Schmit, along with Steuart Smith (guitars, mandolin, keyboards, backing vocals; essentially taking over Felder's role), Michael Thompson (keyboards, trombone), Will Hollis (keyboards, backing vocals), Scott Crago (drums, percussion), Bill Armstrong (Horns), Al Garth (sax, violin), Christian Mostert (sax), and Greg Smith (sax, percussion).

Using a quote from the above article, answer the following question: was the album successful?
debuted at number 1 on the Billboard album chart.