"Beat of My Heart" is a song by American actress and singer Hilary Duff from her first compilation album Most Wanted (2005).

She co-wrote the track with its producers Dead Executives, a record production team consisting of Jason Epperson, Joel and Benji Madden.

Along with the three other new songs on Most Wanted, "Beat of My Heart" was crafted with the intention of having a "totally different sound" from Duff's previous material.

[2] The following month, in an interview with MTV News, Duff said that she had been working with brothers Joel and Benji Madden, of the American rock band Good Charlotte, and Jason Epperson (together known under the production name the Dead Executives) to write and produce new songs for the compilation.

[1] Joel, whom Duff had been dating at the time, was aware that she needed new material for a compilation album, and knew that she wanted a "totally different sound".

[5] For Duff, who stated that the song can be interpreted in many ways, "Beat of My Heart" tells the story of a heterosexual relationship, in which the woman was in love with the man, but he was not "as into her as she was him".

[6] They also mixed and engineered the song; the latter was also conducted by Todd Parker and Grant Conway and assisted by Allan Hessler.

[6] "Beat of My Heart" is an up-tempo new wave-inspired electropop song that incorporates elements of bubblegum pop and dance music in its production.

[7] Spence D. of IGN described "Beat of My Heart" as a "glorious uninhibited slab of Euro pop as filtered through the vocal chords of a warm-blooded American girl.

[7] According to Chuck Taylor of Billboard magazine, the line "beat of my heart" is repeated forty-four times in the song.

[11] The reviewer praised the heartbeat present on the track, writing that it "make it a bit of a foot-tapper", but deemed the lyrics to be "meaningless".

"[11] Spence D. of IGN wrote that "Beat of My Heart" does not try for subtlety as it utilizes the "much overused heartbeat" for the "foundation rhythm" of the song.

They concluded that: "Pop music is always appreciated, but this is a kiddie anthem, plain and simple [...] it is hardly a contender for contemporary radio".

[14] Bill Lamb of About.com found the song, along with "Break My Heart", to be "disappointing cookie cutter copies" of Avril Lavigne's "Sk8er Boi".

[15] Gabriel Leong of MTV Asia stated that "Beat of My Heart" sounds "very much like" songs that Debbie Gibson, Tiffany Darwish and Bananarama would have recorded in 1980s, a direction that suits Duff "much better than the whole budding rock chick image she's been trying out.

[16] In Australia, "Beat of My Heart" outperformed "Wake Up" by reaching number 13; it stayed on the chart for a total 14 weeks.

[20] The music video for "Beat of My Heart" was shot in Los Angeles, California on the week of September 26, 2005.

"[21] Duff premiered "Beat of My Heart" as part of the set list of the Still Most Wanted Tour, which commenced on July 12, 2005, in Los Angeles.