"2nd Floor" is a song by Filipino singer Nina from her 2002 debut album Heaven. It was released to radio in December 2002 by Warner Music Philippines as the album's first promo single in lieu of the album's release in the Philippines. The song was written by Arnie Mendaros, and produced by Neil Gregorio. As soon as Nina sent her demo to Warner and immediately got a contract with the label, production for her first album began. "2nd Floor" became one of the first OPM songs to feature Taglish lyrics and a pop-R&B arrangement. Nina's whistle register is very evident on the song.

Upon release, the song and the album were met with critical acclaim, with most critics pointing out the international sound and smooth production as well as Nina's wide vocal range. The song also earned her the Best New Artist awards on both Awit Awards and MTV Pilipinas Music Awards. "2nd Floor" was well received by the Philippine Association of the Record Industry (PARI) that it was given four nominations on the 2003 Awit Awards, where it won the Best R&B category.

At seventeen, she became a vocalist of the XS, The Big Thing, MYMP, Silk and lastly, the Essence. After college, she recorded an amateur demo CD with the help of a friend. It was composed of three tracks, including the Steve Perry song "Foolish Heart", "Breathe Again" and "Against All Odds (Take a Look at Me Now)", recorded in a home studio with only a guitar for accompaniment. After listening to the demos, Warner Music managing director at that time, Ricky Ilacad wanted to sign her up even without seeing or hearing her in person. Two months after her father died of a heart attack in the United States, she signed her first contract with Warner Music. Under the direction of Ilacad, foreign songwriters and arrangers from the United States and Korea, including Shelly Peiken and Guy Roche, were hired for the production of the album. The album is heavily influenced by jazzy lounge pop-R&B and composed of songs that are reminiscent to the sound of international records at that time.

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