The album contains a selection of the most requested songs from her "all-male hits special" weekly acoustic radio show of the same title, which aired on Wave 89.1 during Friday and Sunday evenings.

Upon release, the album received positive response from music critics who stated that Nina's voice fits perfectly to each song.

In 2010, she won Best Female Recording Artist on the Box Office Entertainment Awards, where the Guillermo Mendoza Memorial Scholarship Foundation named her as the best-selling female recording artist of 2009—having sold 100,000 copies of her Nina Live!, Nina Sings the Hits of Diane Warren and Renditions of the Soul albums.

Despite having the least promotion, it managed to reach Platinum by the Philippine Association of the Record Industry (PARI) in July 2010, denoting 20,000 units sold.

In 2003, she covered three more songs on her second studio album Smile, namely "A Girl Can Dream", "Shoo-Bee-Doo" and "I'll Always Stay in Love This Way".

The album was a huge commercial success, certifying Diamond by the Philippine Association of the Record Industry (PARI).

In 2008, she released her second cover album entitled Nina Sings the Hits of Diane Warren, wherein she took on Warren-penned ballads.

The show's concept is about the Soul Siren, singing the most-requested songs that were originally performed and recorded by male artists, may it be local or foreign.

[6] Each night of the show has its respective theme or concept, where Nina sings songs that are related to each other—may it be originally recorded and performed by the same artist or may it have one lyrical content and plot.

Every evening episode has its respective conception, where the songs are either requests from fans, sung originally by the same artist, or have similar lyrical stories.

Nina's cover of "Can't Find the Words to Say Goodbye", a song originally recorded in two different versions by David Gates and Billy Dean who both wrote and composed it, aired on February 29, 2008.

[12][13] Without any commercial promotion, Renditions of the Soul managed to peak inside the top five of album retailer charts in the Philippines, staying there for months.

Rito Asilo of The Philippine Daily Inquirer gave the album a positive review, noticing the more unplugged sound delivered by it.

"[15] Manila Bulletin gave the album a similarly positive review, stating "The 17-track album is more emotionally subtle, yet the songs just have as equally powerful messages like her previous hits [...] Nina's singing perfectly renders the message of every selection: Love, longing and the purity of emotional surrender.

Despite a large number of choices, the song managed to be chosen by Warner as the first single due to warm positive reception by critics and listeners.

Like the first single, no music video was shot for "Cold Summer Nights", proving lack of support from Warner.

In April 2010, Warner held a sing-along contest for Nina fans and the winner got the chance to be in the single's music video.

The music video barely featured Nina, and just showed some of her pictures from the Renditions of the Soul album photo shoot.

In addition, the second single "Cold Summer Nights" was used as background music on various TV shows aired by GMA Network and TV5 throughout late 2009 up to early 2010.

On August 28, 2009, Nina performed the fan-favorite and Rannie Raymundo hit "Why Can't It Be" on the ASAP Sessionistas first ever major concert, held at the Araneta Coliseum.

On October 23, 2009, she also performed "Why Can't It Be" on the ASAP Sessionistas major concert, live at the Waterfront Cebu City Hotel & Casino.

On May 2, 2010, she launched the album's first commercial single, "I'm Yours", on ASAP XV, despite departing from Warner to her new record label Universal at the time of the song's release.

[28] On the second Wave 89.1 Urban Music Awards in 2010, Nina received two nominations including Best Female Soul/R&B Artist and Best Album for Renditions of the Soul.