"Lucky Star" is a song recorded by American singer Madonna for her eponymous debut studio album (1983). It was released as the fourth single from the album on September 8, 1983 by Sire Records. "Lucky Star" was written by Madonna and produced by Reggie Lucas. However, during recording, Madonna was not impressed by Lucas' version. She called her then-boyfriend John "Jellybean" Benitez to remix the track according to her ideas. "Lucky Star" is a medium-paced dance track and combines the heavy beats of a drum with the sounds of a guitar played in a high riff. The lyrics juxtapose the male body with the heavenly stars in the sky.

Both contemporary and modern critics praised the song, heralding it as the introduction to upbeat dance music. "Lucky Star" became Madonna's first top-five hit on the Billboard Hot 100, when it reached the peak position of number four, becoming the second single in her record-breaking string of 17 consecutive top-ten hits. It had already become Madonna's first number-one song on the Billboard dance charts, when it peaked the chart alongside the previously released single "Holiday".

The music video portrayed Madonna dancing in front of a white background, accompanied by her dancers. After the video was released, Madonna's style and mannerisms became a fashion trend among the younger generation. Scholars noted that in the video, Madonna portrayed herself as narcissistic and an ambiguous character. She referred to herself as the lucky star, unlike the lyrical meaning of the song. Madonna has performed the song in a number of live appearances, most recently at the Rebel Heart Tour (2015–16). It has also been covered by a number of artists.

In 1983, Madonna was recording her first studio album with Warner Music producer Reggie Lucas and her then boyfriend John "Jellybean" Benitez. However, she did not have that much new material to ensure a full LP album. Lucas produced a number of songs for the album, namely "Borderline", "Burning Up", "Physical Attraction", "I Know It", "Think of Me" and lastly "Lucky Star". The song was written by Madonna for DJ Mark Kamins, who previously promised to play the track at his club Danceteria, where he worked as a DJ. However, the track was instead used by Madonna for her debut album, which she planned to call Lucky Star. She believed that "Lucky Star" song, along with "Borderline", were the perfect foundation for her album. But problems arose after recording the song. Madonna was unhappy with the way the final version turned out. According to her, Lucas used too many instruments and did not consider her ideas for the songs. This led to a dispute between the two and after finishing the album, Lucas left the project without altering the songs to Madonna's specifications. Hence, Madonna brought Benitez to remix "Borderline" and "Lucky Star", along with some of the other recorded tracks. In a later interview, Benitez reflected back on the recording sessions and commented,

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