Velasquez served as the stage and creative director for the show, which featured Ogie Alcasid, Gabby Eigenmann, Janno Gibbs, Jaya, and KC Montero as guest acts.

R2K: The Concert received generally positive reviews from music critics, who praised Velasquez's showmanship and vocal abilities, as well as the stage production.

The album was a commercial success, selling over 40,000 copies in the second week of release and earning a platinum certification from the Philippine Association of the Record Industry.

[1] As part of the album's promotion, Velasquez performed in small venues,[3] which included a three-day event at the Music Museum called Regine 2000.

[9] The Philippine Daily Inquirer previewed that it would be her "biggest and most expensive concert to date", adding that her main objective was to deliver performances that "range from pop, ballads, rock and even rap".

For a quick costume change after the opening segment, Laurel produced a gold metallic spaghetti-strapped top, incorporating a psychedelic micro-mini skirt over animal print tights.

As two female dancers lifted by wires performed aerial acrobatics, Velasquez sang excerpts from the chorus of the Backstreet Boys' "Larger than Life" (1999), before disappearing offstage.

[12] During the performance of "On the Wings of Love" (1982), Velasquez was lifted by wires, revealing long skirt panels adorned with butterfly appliqués that billowed out around her as if she was flying towards the audience.

[12][19] She then sang a duet of "Habang May Buhay" (1994) with Jaya, which was followed by a debut performance of "Kailangan Ko'y Ikaw", the main theme song of Velasquez's film of the same name.

[12] For the final act, Velasquez sang a ballad version of Aerosmith's "I Don't Want to Miss a Thing" (1998) with a brief pyrotechnics display at the conclusion of the number.

Ricky Lo of The Philippine Star described the show as a "fully loaded electrifying concert" and complimented Velasquez's "boundless energy and creativity".

[14] Ramil Gulle, also from The Philippine Star, acknowledged that Velasquez's concert lived up to expectations, writing: "She put up a show that quite no other Filipino pop artist has.

"[13] He commended her maturity and favored her ability to sing with "proper nuances" and "more heart", asserting that the show was a reminder of Velasquez's theatrics and vocal talents.

Lo termed it a "decidedly daring or risky action",[14] while in a 2017 retrospective, Elvin Luciano from CNN Philippines argued that it was one of Velasquez's most memorable moments.

[21] Alex Vergara of the Philippine Daily Inquirer commented that the outfits "did dazzle the audience and suit [Velasquez's] unique flair onstage".