"Holler" is a song by British pop girl-group the Spice Girls, released as one of the two songs picked as the lead single from their third studio album, Forever (2000). The song was written by the Spice Girls, Rodney Jerkins, LaShawn Daniels, and Fred Jerkins III, with Jerkins also producing it. The single was released as a double A-side single along with "Let Love Lead the Way" internationally, on 23 October 2000, except within the United States and Canada.

"Holler" is considered a more mature song, with R&B influences, and with lyrics talking about sexual pleasure. Critics gave "Holler" favorable reviews; though some thought it was too different from their previous sounds. However, most praised its funky groove and called it "a pleasant surprise", picking it as one of the best tracks on the album. The single was a number-one hit in the United Kingdom, while it also reached top-ten positions in more than 10 countries.

After releasing "Goodbye" as their first single without member Geri Halliwell, in 1998, the band took a break and only came back to a recording studio in mid-1999, when Rodney Jerkins signed up to give their then-upcoming new album a tougher sound. Jerkins said, "I went out to dinner with a couple of the Spice Girls about a month and a half ago and they told me that they want me to, you know, do some work on their album, so I'm planning on going to London at the end of January, early February to work on the album, so it should be cool. I'm ready for it, it will still have a pop appeal, but the beats will be a little harder."

Later, in October 1999, Jerkins also said, "I did three songs with them, and everybody I've been playing them for can't believe it's the Spice Girls. I like to create for the artist on the spot. I knew I had to do the Spice Girls 10 months beforehand, but I didn't write one single lyric or do one track until I got to London. We started working on the songs the day I met them, because I wanted to get a vibe from them. We did the three songs in five days." In December 1999, the girls performed a few new tracks during the "Christmas in Spiceworld" tour, including "Holler".

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