"LoveGame" is a song released by American singer Lady Gaga from her debut studio album, The Fame (2008). A synth-pop and electro-R&B record, the track was released as the album's third single in North America and Europe and the fourth single in Australia, New Zealand, and Sweden after "Eh, Eh (Nothing Else I Can Say)". "LoveGame" was also released as the fourth single in the United Kingdom, after "Paparazzi". It was written by Gaga herself, alongside the song's producer, RedOne.

Critics appreciated the song's rhythm and the "I wanna take a ride on your disco stick" hook. Gaga had explained that the term "disco stick" is a euphemism for a penis and was inspired by her sexual attraction to a stranger at a night club. Musically carrying the vibe of underground New York discos, "LoveGame" talks about love, fame, and sexuality which was the central theme of the album. The song received a number of remixes, one of them featuring rock musician Marilyn Manson. "LoveGame" was a commercial success, charting within the top ten in the United States, Australia, New Zealand, Canada, France, Germany, and other European countries. It became Gaga's third consecutive number-one song on the Billboard Mainstream Top 40 chart and achieved triple platinum certification from the Recording Industry Association of America (RIAA).

The New York underground-inspired music video for the song was directed by Joseph Kahn, and portrayed Gaga dancing at an underground subway station and in a parking lot. The music video was a tribute from the singer to the New York lifestyle including its glamour, fans and fashion. It was influenced by the music video for Michael Jackson's "Bad", which also took place in a subway station, and features Gaga wearing Nazi chic clothes. The music video was banned from broadcast at the PG-rated time slots in Australian television channels because of its sexual content. "LoveGame" has been performed live a number of times by Gaga, including television appearances, such as Dancing with the Stars and The Ellen DeGeneres Show, the 2009 MuchMusic Video Awards, and many of the singer's concert tours. She usually performs the song while holding her characteristic "disco stick" in one hand.

Towards the end of 2007, Lady Gaga's management company introduced her to songwriter and producer RedOne, whom they also managed. By 2008, Gaga relocated to Los Angeles in order to work extensively with her record label to complete her debut album, The Fame, and set up her own creative team called the Haus of Gaga. "LoveGame" was one of the songs written by Gaga and RedOne who also produced the track. With Rolling Stone, Gaga explained that she was at a nightclub and had a "sexual crush" on somebody. She went up to the person and uttered the line, "I wanna ride on your disco stick". Thinking it to be a thoughtful metaphor for penis, Gaga went to the recording studio the next day and wrote the song in roughly four minutes. Gaga also had ideas for the live performance of the song where she used "an actual stick—it looks like a giant rock-candy pleasuring tool—that lights up".

While commenting in regards to the lyrical content of the song on Australian talk show, Rove, Gaga said that she was unrepentant about her "disco stick" metaphor, though it led to a banning of the music video on Network Ten in Australia. She added that the metaphor was not meant to be subtle and was clear what the lyrics constituted off. "If anything, I happen to think people are frivolously hard on me", Gaga generalized. She went on to relegate "lot of youth-oriented pop music" as much racier than hers with their sexually provocative lyrics, but Gaga felt that the whole context of her visuals alongside the music was what made people react. "It's the music in relation to the visual, in relation to the way I move and the way I articulate the lyrics. But if I wanted to make music to make people sing 'la di da' that would be very boring," she concluded.

"LoveGame" was released as the album's third single in North America and Europe and the fourth single in Australia, New Zealand, and Sweden after "Eh, Eh (Nothing Else I Can Say)". In the US it was sent to Contemporary hit radio (CHR) formats for airplay from May 12, 2009. The track initially had been planned as the third single release in the United Kingdom, but deeming its lyrics and music video potentially controversial, it was decided that "Paparazzi" would be released instead. "LoveGame" has received a number of remix treatments, one of which featured vocals from rocker Marilyn Manson. Daniel Kreps from Rolling Stone reported that the remix was conceived during Gaga's photoshoot with the magazine in May 2009, when Manson arrived on the set. The rocker was impressed by the shoot and wanted to collaborate with Gaga on "LoveGame".

"LoveGame" was recorded at Record Plant Studios and Chalice Recording Studios, both in Hollywood, California. Along with the production work of the track, RedOne also contributed to its background vocals, instrumentation, programming, audio engineering and recording. Other personnel involved in creating the final version of the song included Robert Orton who did the audio mixing, and Gene Grimaldi who mastered the song at Oasis Mastering in Burbank, California.

Musically, "LoveGame" is an uptempo synth-pop and electro-R&B song. According to Kerri Mason of Billboard, the composition has a vibe of the New York downtown musical scene, but has a more mainstream appeal to it, making it perfect for radio, "without losing its smut and sass". The song does not have a massive sound like previous single "Poker Face", nor has a big melody like subsequent single, "Paparazzi". Instead the composition of the song is electro-R&B, consisting of big beats and a number of hooks, with Gaga repeating the word "huh!" from time to time.