The EP is an extension of the group's second studio album, Doll Domination (2008), including some previously released singles, such as "When I Grow Up", "Whatcha Think About That" and "I Hate This Part", as well as three new songs.

He called the album a commercial disappointment, noting that it had sold less than 400,000 copies in the United States, at the same time as confirming that a re-release was set to be released under the title of Doll Domination 2.0.

[5] A second EP version of the album was also released in Germany entitled Doll Domination – Re-edition EP which is similar to The Mini Collection but adds two further songs: including the Doll Domination single "Bottle Pop" (2009), which features Snoop Dogg, and the "We Love to Entertain You" mix of "Takin' Over the World".

[6] All of the reissues vary in length but share in common the inclusion of the Pussycat Dolls' then-most recent single "Jai Ho!

(You Are My Destiny)", which is an English language remake of the original Hindi song "Jai Ho" that was included on the soundtrack to the film Slumdog Millionaire (2008).

"[10] Stephanie Nolen of The Globe and Mail described the lyrics as "racier than the original Hindi words "by Indian poet Gulzar".

"[11] "When I Grow Up" is an uptempo electropop song,[12] built around "bouncy synth lines" and a "thudding" bassline and alongside heavy usage of sirens, handclaps and pitch-shifted vocals.

The Yardbirds' drummer Jim McCarty and bassist Paul Samwell-Smith both received co-writing credits on the song, as a result of its sample of "He's Always There" (1966).

[8] The song was described by the Los Angeles Times as the album's ideological centrepiece.Writing for the newspaper, August Brown, Mikael Wood and Randy Lewis said, "Built off a filling-loosening house beat and the Dolls' smug cackling, it's so shameless in its celebration of the monoculture of moneyed youth that it transcends taste.

It's more of a '95 Theses' as penned by Kim Kardashian and nailed to Viacom's front door with the shards of a broken BlackBerry – we demand to be on TV; to drive nice cars; to have groupies.

[18] A R&B and electropop midtempo song, "Whatcha Think About That" sees the group "laying down the law to a deadbeat boyfriend" over a melody of chants, and vocal harmonies and bhangra-ish guitar.

[23][8] Slant Magazine referred to "I Hate This Part" as an international hit, commenting that the "songwriting is strong enough to forgive whatever similarities the song has to Kylie Minogue's 'All I See' (2008) and Jordin Sparks's "One Step at a Time" (2008)".

The song was recorded at the Cutfather Studios in Copenhagen, Denmark and at The Boiler Room in Santa Monica, California by Mike "Angry" Eleopoulos, Tal Herzber and Jeberg with the assistance of Johnathan Merritt.

[27] Like "When I Grow Up", "I Hate This Part" was also originally intended for Scherzinger's solo debut studio album Her Name Is Nicole, which was shelved.

[29] Freddie Perren and Dino Fekaris received co-writing credits for the song, due to the interpolation of "I Will Survive", which includes quotation of the original string arrangement by David Blumberg.

[30] An accompanying music video was released on March 13 of that year, which was directed by Thomas Kloss and filmed at the Wiener Linien tram museum in Vienna, Austria.

[31] Upon its release, the song topped several charts around the world, including in Australia,[32] Finland,[33] Ireland,[34] Israel,[35] and Romania,[36] as well as reaching number 15 on the Billboard Hot 100, in the group's native country of the US.

[48] Nick Levine from Digital Spy said of The Mini Collection that "at first glance, this release seems more than a little strange," suggesting "after scoring their biggest hit of the Doll Domination era with 'Jai Ho!

Tack the Slumdog-sampling smash onto the end of the original album, add a couple more new tunes and call it a 'Deluxe Edition'."

[41] While opening for The Circus Starring Britney Spears (2009) in Glendale, Arizona, Melody Thornton addressed the crowd during the break, saying, "[...] [l]et me give a shout-out to my family.

[49] Scherzinger later spoke about her billing as a featured artist during a radio interview: "It's no big deal, that doesn't take away from anybody else in the group.

This was less than a sixth of what the group's debut studio album PCD (2006) had sold in the UK: 1,246,769 copies at the time of writing.