Oh oh, Oh oh The easy, fast & fun way to learn how to sing: 30DaySinger. Open up the door, but just keep on seeing you It's this 1 thing that's caught me slippin My high heels are clicking towards your door. It's this 1 thing that's got me trippin (you did) Struggling with 1 Thing? Become a better singer in 30 days with these videos! Knock, knock, knock, oh It was later named the 22nd and 25th best song of the 2000s decade by Rolling Stone and Robert Christgau, respectively. Amerie () 1 Thing Amerie () 1 Thing Knock, knock, knock, oh Knock, knock, knock, oh Knock, knock, knock, oh Knock, knock, knock Oh, been trying to let it go Trying to keep my. The song earned Amerie a nomination for Best Female R&B Vocal Performance at the 2006 Grammy Awards, and was also nominated for Choice R&B/Hip-Hop Track at the 2005 Teen Choice Awards. A remix of "1 Thing" features rapper Eve. Its digital download and ringtone releases were each certified gold by the Recording Industry Association of America (RIAA). "1 Thing" received acclaim from critics, and peaked at number eight on the Billboard Hot 100 and number four in the United Kingdom, becoming Amerie's first top-10 single and her biggest singles to date, also peaking at number one on the US R&B singles chart. The song was released as the album's lead single in 2005, and is the only single from the soundtrack to the 2005 romantic comedy film Hitch. Its lyrics focus on an unidentified "thing" that fuels a romantic attraction. Written by Amerie and Rich Harrison and produced by the latter, the song is influenced by go-go rhythms and features a prominent sample of the Meters' 1970 funk recording of "Oh, Calcutta!", written by Stanley Walden. "1 Thing" is a song by American singer Amerie from her second studio album, Touch (2005).