Glee: The Music Presents the Warblers is the seventh soundtrack album by the cast of Glee, a musical comedy-drama television series that airs on Fox in the United States. Released through Columbia Records on April 19, 2011, it contains thirteen covers: eleven accompanying performances from the series' second season and two exclusive to the album. Performers are portrayed on Glee as the fictional Dalton Academy Warblers, an all-male high school glee club from Westerville, Ohio. Recurring guest star Darren Criss and series regular Chris Colfer serve as lead vocalists, while the Beelzebubs, an all-male a cappella group from Tufts University, provide background vocals. Dante Di Loreto and Brad Falchuk serve as the album's executive producers, and its tracks have collectively sold over 1.3 million copies. 　　Professional critics have overall given Glee: The Music Presents the Warblers generally mixed reviews. About.com's Bill Lamb reviewed the album positively, calling it "one of the best Glee collections". Though he called some of the covers "an effort to draw attention with a current pop hit", he applauded some of the other tracks, i.e. "Candles" and Keane's "Somewhere Only We Know", as some of the album's top tracks for featuring songs unfamiliar to a mainstream American audience. Andrew Leahey of Allmusic gave the album a rating of three stars out of a possible five, and felt Colfer's performance on "Blackbird" was lacking in confidence. On the other hand, he greatly admired Criss' versatility as a singer in covering songs from a range of different genres. He also praised the tracks' creative a cappella arrangements, which he felt made them more interesting than those of previous Glee releases. The Boston Globe's Nicole Cammorata gave an overall favorable review of Glee: The Music Presents the Warblers: her only negative remark was that she felt Colfer's voice on "Candles" did not work well with the song's high notes. Diehl gave the release two stars out of four and felt that, outside the context of the series, the tracks seemed somewhat over-the-top. "When I Get You Alone", for example, was noted as "too cute" for an urban song. Thomas Conner from The Chicago Sun-Times also gave the album two out of four stars, stating, "over the course of 13 tracks the Warblers' gimmick just as often degrades into laughable self-parody." David Burger of The Salt Lake Tribune enjoyed the a cappella songs in contrast to the series' conventional material, which he felt was "over-produced and over-orchestrated". 　　The album debuted at number two on the US Billboard 200 and number one on Billboard's Soundtracks chart, selling 86,000 copies in its first week. This marked the second-lowest opening sales figure for a Glee release, next to the extended play Glee: The Music, The Rocky Horror Glee Show, though it was the highest charting album on the Billboard 200 from the show's second season, and the next soundtrack release, Glee: The Music, Volume 6, would sell 6,000 fewer copies in its first week. The Warblers album sold 28,000 copies in its second week. On the Canadian and Australian Albums Charts, the album debuted at numbers five and six, respectively. In New Zealand, Glee: The Music Presents the Warblers debuted at number eleven. The album peaked at number forty-one on the Mexican charts. Meanwhile, the Beelzebubs have seen their releases undergo a four-fold increase in average sales per month.